Cancer Man has confused Libra Girl

I??ve been lurking around for a while and finally decided to post about my situation. The story is long, so I apologize in advance.
CM and I had a relationship. When we hit our 1 year mark, he came to my house in the middle of the night and left a Dear Jane letter in my mailbox. In the letter, he said that even though he had feelings for me, he still had strong feelings for his ex-girlfriend who had recently moved back to town and they were trying to spend time together.
Needless to say, I was devastated. I never responded to his letter; after all, what could I say? he was in love with someone else. So I came to work (yes, we work at the same place — different shifts) with my head held high and went on about my business. Within 6 weeks, he was back trying to make a mends, eventually he got the nerve to speak to me and then asked permission to call me. That's when he let me know that the ex-girlfriend was no longer in the picture. He worked so hard to get back into my good graces, we spent New Year??s Eve together and he even asked me for another date. Things were great and then poof — he was gone again. However, this time I didn't go so quietly, I kept asking questions and saying —hey look, if you have changed your mind about us — it's cool, just tell me and I??ll go on about my business.?? His reply was —No, that's not what this is; I would never do that to you again.?? I felt he was sincere at the time, I knew he was going through some personal problems (as was I) and gave it a few more months. His behavior never changed, no more phone calls and he definitely wasn't trying to spend time with me. So I decided that I needed to focus more on my personal issues and I backed away. I managed to stay hidden for 2 months, when we ran into each other in the hallway, and he said —hey stranger, where have you been— We talked for a moment and he was very reminiscent saying things like —remember when we did this or remember when we were here and this happened?? kind of stuff. I was a little taken aback by this behavior, I mean here he is acting like he misses me — yet in during the whole 2 months that he never saw me at work, he never bothered to call.

Anyway, to make a long story short, this back and forth behavior of where we would or would not talk continued for several months. He became jealous when I asked his friend to work on my aunt's car. So when mine needed work, he happily agreed. He seemed so happy and excited about being able to do something for me, he even came to work picked it up, took it to his house and then brought it back. Things seemed to be improving; he was suddenly showing up at my part-time job, was friendlier in the hallways and giving me that big grin when he saw me. Then it happened — he asked permission to call me again. Once again, things seemed to be back on track.
To cut to the chase, things were moving along, until right before Christmas, when he made a comment to a co-worker (who knew nothing about us) and in front of one of my girlfriends about how he lives with —his lady?? on the weekends and that they were getting married next year (2011). Needless to say, once she realized he wasn't talking about me, my girlfriend was very shocked to hear this news, especially since he had been telling her about how he had driven me home the other night (I had a broken foot at the time) and I tried to tie him up so he couldn't leave.
So, I tried to talk to him face to face, asking if we could meet during his lunch break. He told me that he would let me know what night would be good. Of course — I never heard anything. So, I wrote him a letter telling him that I was tired of the games, pointed out the moments when I asked him directly what was going on and how he should have told me the truth, how disappointed I was that he turned out to be such a coward and knowing how much he cared for and did for his mom, daughter and sisters — I never once thought he would or could treat a woman in this manner. I followed up by saying that to spite the tone of the letter, I did realize that you can't help who you do or do not have feelings for, so I wanted him to go and be happy with this woman. I also, said that I would be cordial if/when we saw each other at work —but that he needed to know that I was done and considering how he had treated me — he no longer deserved the benefit of my friendship.
I handed him the letter, with a thank-you card for driving me home and a gas gift card and walked away. The very next day, he comes to my office, gives me the sad puppy dog eyes with the look —I know I did wrong?? and waved at me. I saw this as a slap in the fa

I saw this as a slap in the face and wound up giving him a WTF look. Anyway, the next day he hurt himself and wound up being out of work for the next two months. I never heard a word from him. When he returned in March, he came into my office looked around for me, made eye contact with me, smiled and waved. Once again, I gave the WTF look. Since it was quitting time, I gathered my things and left. For the next 3 to 4 weeks, he would come to the office and watch me and then hang around outside in the hallway for a while. Additionally, if he passed me on the street, he would watch me and wait for me to acknowledge him. But knowing this is how he behaved in the past, to make me see he was sorry and wanted forgiveness, I refused to cave-in without an apology. Well, when he realized that the pouting behavior wasn't going to work, he started giving me dirty looks, I mean I literally felt the daggers coming from him. I was shocked, but still didn't give in. From there, he moved on to coming into the office and flirting with my co-workers, sitting down having conversations with them (people he never spoke to in the past) and if we ran into each other in the hallway he would look over my head or if we ran into each other on the street he would look the other way. I must say, this tactic almost worked but I stood my ground. Then he disappeared. I mean he was here, but wouldn't come into the office if I was here. This went on for about 6 weeks.
Now he is back . . . and once again he's watching me in the hallway and giving me the sad looks here at the office and when I run into him on the street. Maybe it is my Libra mind, but this behavior totally confuses me. What does he want? I'm pretty sure he is still with his girlfriend, so I don't think he wants me back. Is it friendship or forgiveness that he seeks? And if so, why not just man up and say —hey can we talk?? and apologize? My friends say I spoiled him with my attention and now he wants it back. Well, shouldn't the attention of the lady he's going to marry be enough for him?

LOL! Thomas - nice to know I can confuse someone other than myself.

But I guess the heart of my question(s) is this. With the way he has treated me, it is obvious that he doesn't care about me. So why continue with the sad, please talk to me looks.