AM I OVERREACTING?

So yesterday I had my Babyshower and my child’s father didn’t attend because he claim he was sick! (He was sick the other day but that didn’t stop him from coming to get some aδδ) TMI.. At this point I’m pissed, but I don’t want to feel like I’m overreacting. I feel like he’s just running from my baby and she will be here in less than 9 days. I want to cut all of them off! Starting with his mama. Although, she was there! He stated his mama was going to fill in for him.. TF does that! ?? If I allow him to feel like she can fill in for him now; I feel like it will be a consistent battle with him taking care of his own responsibility!