<human>: So we started as casual FWB in the begging of this year, things were going great. We could talk all day for pretty much anything.
Month and a half in our casual thing, we decided we want to be together. 

Currently I am abroad,while she is still in my hometown. Before 3 weeks she told me out of the blue that she met with her ex, they kissed and she feels really bad about it. She told me she still has feeling for him and that she couldn't continue like that and she broke up with me. I was devastated, all this from only one meet with her ex. 

I told her,that i appreciate she told me that and that id miss her, then we stopped  talking.

Last week I was pretty busy and I didnt have any time for social medias. Today I logged in FB and seconds after, she messaged me, something like ''hey, where youve been''. We chatted for quite a bit, talked on skype. Then she started dropping stuff like ''btw I think youre cute'' and after some more time chatting, it was like nothing ever happened. Then I said something funny, which transitioned somehow to sexting. She asked me if I wanted to, it was usual for us  when we were together. Then we talked about school and friends, after that she wished me goodnight and went to bed.

I am so confused, I still have feelings for her. She didn't  mention anything about her ex. Everything went back to normal, minus the sweet talk. What should I do, I'll be back to my  hometown in a month. 
I doubt she is using me only sexting.

Can you provide a brief overview of the text?
<bot>: She left me for her ex, month later contacts me like nothing happened. Still have feeling for her, what should I do?