5 year break up

Why is it so hard, when you break up with someone that you’re the one that hurts the most? So a week ago I caught my SO texting other females and I put him out. He was the one in the wrong but I’m so messed up over him not being here and us not being together. I’ve been so stressed out and depressed. I haven’t seen or talked to him since it happened. Him and my daughter text every other day and he came by today to give her somethings but had his little brother bring it to the door because he stated that he didn’t want to see my face. As if I was the one that was texting other guys. He also told his little brother to tell me he’ll be here Monday to get the rest of his things since his mom is moving out from their grandma’s house, he’s just going to take her old room. A part of me wants to work it out somewhere down the line and the other part just wants to feel better and move on. I’m so confused ladies! Any advice good or harsh will help.

UPDATE!!!

I’ve finally been to the point where I’m doing okay since the break up. Finally going out tonight with my sisters. He’s been coming over quite a lot lately, coming to spent time with my daughter and I don’t have a car right now so he’s been taking me back and forth to work and taking my daughter to and from school until I buy a car at the end of the month. He also paid my bills for this month even though he hasn’t been staying here. I’m about to go drop my daughter off to him so I can go out. He pretty pissed that I’m going out. I can hear it all in his voice. I’m finally able to go out and enjoy life