2 years ago I was dating this girl. Things were going well but I messed it up as I was a beta. I gave her all the wants of a relationship such as taking her out all the time. Anyway you know the rest, I stopped talking to her once I knew nothing would ever happen sex wise.

So I see her again, in the library. She comes and sits next to me. Things have changed, she is the one making the effort. She is constantly touching me (arm area). She fake laughs at most things I say. (I wasn't even trying to be funny). She holds eye contact, sort of leaning in.

We went out, she brought me dinner. I said I will pay her back. She hasn't said anything yet about the money.

Today she has sent 3 back to back texts because I've not bothered replying.

What should I do, I wouldn't mind a FWB situation, but how would I even go about doing it?