<human>: Can you provide a brief rundown of the text in within 3 sentences?

Hey guys, throwaway because I'm kinda embarrassed about this.

9 days ago me and my girlfriend split up. We were a terrible couple but had tried to make it work for the last year and a bit. I was deeply in love with her. For the first 6 months or so we were fantastic. So for 14/15 months we were together.

The break up was harmonious enough, we both talked about it and agreed to go our separate ways but would try to still be friends.

Fastforward to last night, she makes a big deal of me coming to test drive a car for her. I tell her I don't want to, because let's face it, it's not very exciting, and I get all this shit from her about 'So much for wanting to be friends'. It's irritating, but I end up making her realise that that isn't what is going on.

Fastfoward again to about half an hour ago. She texts me 9 days after breaking up with me asking if I would mind her seeing someone else. I reply saying I would have hoped she would have waited more than 9 days after a 15 month relationship, but it's her life, she can do what she wants. She texts me about some other crap, but I'm a bit hung up on her moving on in 9 days so I text her again saying "9 days is fucking ridiculous". She replies saying that I said I didn't mind (which I didn't say, I said it's her life) and that it wasn't necessarily going to be a serious relationship.

I equated this to her essentially telling me she wants to fuck another guy. 9 days after splitting up. To me it seems like a pretty clear sign that she gave very few fucks about me.

Also, I just read through this as if I was reading another user's thread and I think my comment would be something along the lines of "You're over-reacting". But still. Advice appreciated.
<bot>: My gf of 15 months broke up with me 9 days ago and decided it would be a good idea to ask my opinion of her fucking some other guy.