situationships are a tricky thing. two people who are emotionally unavailable come together in this agreement that things are casual with no strings & then both catch feelings but only ONE is willing to change their mind about commitment now & the other is like absolutely not.
Stop expecting apologies from people who truly aren't sorry for the ways they've hurt you, talked to you, handled you and treated you. You can't force anybody to care who really does not. What you CAN do is recognize when you're deserving of more and better then go after that.