My OH has a 1.5 year old son who we have every weekend and unless he knows his parents are coming over he barley bothers with him. He doesn't spend any money on him, I've been the one buying all his clothes and arranging days out. Today his parents came over and my OH decided to act super daddy again and say how attached little man has been Etc. He wants me to go over his parents all the time when we have him and I can't be bothered, I have anxiety and it makes me feel anxious and out of place but I agreed to tonight. Now he knows if he gives his son all the attention he'll be stuck to him, little man was lying on his chest on the floor and kept trying to get on the seat, I went to lift him over and my OH started shouting at me "if he's comfortable just bloody leave him" then he was in his high chair eating and he kept trying to get out and I was leaving the room so I said to him that his son wanted out and he shouts again "quite fucking clearly" he tries to make me feel like a mug for helping all the time and has even stated "step parents aren't important until they're married" he slag off his baby mama but text her saying she was "well fit" and tried to tell me his love for his son confused his feelings for her. I'm starting to feel this whole "step parent" thing ain't for me at all. I feel like crap, out of place and like I have no say in anything.