My ex is the mother of my son. Last week we got into an argument but not something to the point where I thought she would be vengeful about it. Saturday she had to bring him home to see me and my father who came back from oversees (he's never seen him in person). After the fight, she didn't return my calls or texts. This morning, coming home from work I see a text from her with only the words "Happy father's day". I wanted to patch things up with her after my son was born and be like those power couples but I see it's just not going to happen. I sent her a text already saying that I can't accept that kind of behavior. She's self obsessed to the point where she talks about herself in the third person sometimes.
Should I just accept that I fucked plugged crazy and focus on myself from now on or try to understand where all this is coming from and patch things up.