I'm in my early 40s. My friend was divorced a few years back, and she's clearly going through something. She bought a house with a guy she only knew for 2 months because she was sure he was "the one", and they didn't even last a year. Within the day that that relationship ended, she started fucking every guy she could find on the apps - sometimes two or three in a day if she could pull it off, she almost never went a day without sex. About two months into this phase she met a new guy. She ended up breaking up his marriage and she was living with him in like 4 months. This guy is rich but he's also a huge piece of shit douchebag, and he decided he wanted to open the relationship so now she's back to constantly fucking guys.

I have friends that love to fuck around but it seems like she's just doing this to try to make up for some sort of mental health crisis. I think her divorce really fucked her up and she does not want to work through it. She has had moments where we are out together, she drinks a little too much (which happens frequently), and then she starts crying about something in her life like she will never be happy or that her life is a mess. I have tried to talk to her about changing her therapist and I have tried to get her to rethink how she's handling her life, but once she sobers up she laughs and insists she's fine. She is also high 24/7 so I think she's just completely numb all the time.

I feel bad for her but I just keep trying to be there for her as a friend. I can't make her do anything obviously, so I try to just be supportive. But this has been going on for a few years now, it's getting old, and there are times where it really goddamn annoys me. She wanted to have brunch, okay great. I love when she wants to get together because she usually opens up about how annoying her boyfriend is, and I just nod and try to be supportive when she wants me to agree he's a dick because he is such a dick and I hate him. I prefer to have her keep sharing things with me.

So okay, we were supposed to get brunch and we were setting a time. Now she doesn't want to meet until the afternoon because she's trying to hook up with a random guy earlier so she wants to push me back.

On the one hand: I am trying to be patient and be there for her. If she hadn't told me the reason why she wants to push off brunch, I probably wouldn't have cared. But now that she's told me the reason, I'm annoyed and I want to tell her I can't meet earlier. There is a big part of me that wants to tell her if she can't prioritize me over a guy on Sunday, I'm not available. Additionally, I feel like she will likely blow me off since she's trying to push things back now.

Idk. I am not sure if I'd be an ass just cuz she wants to do brunch an hour or two later. Help?