Advice
1. You are 8 years older.
2. How did you get her number? Did she give it willingly? Did you ask for it?
The way I read it is she is seeing you as another classmate and the exchanging of numbers is in the event she needs your help.
2. How did you get her number? Did she give it willingly? Did you ask for it?
The way I read it is she is seeing you as another classmate and the exchanging of numbers is in the event she needs your help.