<human>: I grew up with a girl who went to the same church as me, and we were friends who hung out quite a bit until the end of high school and college.  She had gone to school quite a distance from me, so we didn't see each other again until she finished college.   When she got back, we started hanging out again, and really hit it off, but at the time, I was still really hurting over my ex, and didn't want a relationship.  She tried to kiss me, but I turned my cheek (I know, really low). I really liked her, I just didn't want to put her through me being unsure all the time (I was still in love with my ex).  We kept hanging out, and I invited my best friend to hang out with us.  They became friends and started to hang out occasionally.

Fast forward a while.  Her and my best friend, who work and live fairly close together, decide to move in together for financial reasons and because it would be fun to live with a friend.  He had a GF at the time so I wasn't too worried.  He ended up breaking up with his GF, and dating my childhood friend once they moved in, and have now lived together for a year.

Now, I'm constantly jealous, and regret my choices every single day.  I'm assuming I should probably just shut up and deal with it, but they are two of my closest friends.  How do I deal with hanging out with them, especially with all the PDA.

Condense the text into a few key points
<bot>: I [26m] messed up and now my friend since childhood [26f] is dating my best friend [25m]