Info - she was my first girl, first sex. How to respond?

Last week my FWB suddenly asked for beeing exclusive. I answered that I am not ready for that kind of commitment yet, that i'm having fun with her, let's see what future brings.

3 days ago, she says that there will be no sex if i won't stay the night, cuz sex for her its 2 parts, that she needs to cuddle after and stuff. Cool I understand. But i wasn't just using her for sex, I genuinely had fun in her company. But i was returning to my place, I couldnt sleep there and i was a zombie the next day.

But yea, yesterday she holds that promise. So we watch movie, boring as hell. I started ignoring her, focusing just on movies. She says that im mad that i should do something. After movie I'm saying i'm going home. Then she brakes down. That she feels like whenever i meet her its just to leave as fast as possible, and we can't spend time together. Also she has some shit in her personal lige(changing job, place to live, group on her studies - but basically it's all handled and she blows it out of proportion imo)

So she cries i leave because its almost 1am. Then i get text msg. That if this "relationship" is going to look like this in the future she is not up to it. That if she has some problems it should be naturally that i stay and help her. (But guys, i didn't hear about any problems till now, and getting 2 or 4 weeks notice don't seem like life breaking problem).

So basically as it stands I am the bad because I'm not staying with her dealing with her problems??? Which tbh i didn't even know about, still don't lol.. She addmited to having borderline(assumed by her doctor)

So, how should I respond? Should it just be "ok"? She is a nice girl, and in some weird way i undersand HER logic - i was thinking saying something that "it's a shame that she feels that way but i understand and had fun"

Thanks for response