I really need someone to talk to…

I’ll try to make this short but me and my ex have been split up for the last 2 years and coparenting with our daughter. She recently got into a new relationship only a couple weeks after we went to the zoo together and thought she was warming back up to me. I foolishly let her get close just to get hurt all over again. I attempted self harm the night I found after leaving work early over it. I don’t know why she wanted to go on that outing with me if she planned on putting herself back on it there to meet someone new. Cause obviously it’s gonna be a one and done situation since someone new is in the picture now. I’m struggling so bad. I havent been able to move on and she did so easily. My daughter is the only thing keeping me together right now since I have her with me right now…