Have you thought of just asking her if she needs someone to talk to and just meeting up for coffee or something? Honestly, maybe she just needs help and a willing listener, and it doesn’t have to be about a relationship or sex or anything, just you helping out a friend by listening. Try making it about her and not you or “us”, even if you were in a relationship sometimes that’s what a partner needs

Can someone explain this? Integral from 10 to 13 of 2x? It’s been a long time since calculus for me, but isn’t that like 2x² + c or something like that?