[MF] Hook up with Ex

This happened a few years ago. A little backstory: My Ex and I dated for a little over a year. We broke up and never really communicated too much. She was a sweet individual , had glasses, a little Latina nerd look in a good way. She had the biggest ass and set of tits . Absolutely stunning. Anyways, the split wasn’t pretty and we didn’t talk for a long time of course, Would talk about each other to mutual friends. I felt bad because I did neglect her as a hormonal boy would. She didn’t deserve it. To this day if I were to get into contact with her , I would catch up and apologize for everything.
But back to the main story. So about 6 months after breaking up, we would still talk to mutual friends

I hit up a girl we both knew , let’s call her Y. I was horny guy and hadn’t gotten it in in a while, and I knew Y was freaky too. So I texted her to talk and try my chances. I told her something like “ I am trying to get laid, it’s been so long, know anyone interested?” Something stupid like that. She told me my ex actually was talking to her about how she missed the sex and wasn’t really looking for someone new. I hesitated on hitting her up because I didn’t want to give her that “being used” feeling. But Y insisted I do it. So I did.