Am I going along with this petty game?

So my ex and I just recently stopped talking AGAIN. We were trying but didn’t work out so he decided to take my daughter every weekend again due to court order. So I can’t say no. Which again, is fine with me because I work a lot so that’s ok. But I’ve noticed since I stopped talking to him he ignores me when he has my daughter. It almost seems he is upset that I stopped talking to him and only reason I did it was because he was having his cake and eating it too and it seems as though he is taking my daughter when he sees his other girl. All day yesterday I tried reaching out, he never responded until 10pm. I got my daughter back last night but today I worked so she left back with her dad.... tell me why he texts me a picture of her after he’s been IGNORING ME!! Not only that it so happened to be on the day that he didn’t see me today. For the first time I said I’m not pushing my Schedule back for this asshole and I’m leaving for work. I left my daughter with my cousin and when my ex came to pick her up, my cousin gave my daughter to him, NOT ME. Cause I wasn’t home. Usually I wait. But this time I said fuck this.

Well I’m at work and I receive a picture of my daughter and I really want to reply but we literally got into a fight before he got there and I don’t see why he’s even texting me? I don’t want to play this petty game but everyone says don’t reply just like he doesn’t reply to you. But my heart says reply cause of course I still like the guy. But he doenst want to be with me. Should I respond to his text?