I can’t take it with my husband anymore

So I’m getting sick of my partner our daughter is currently in the hospital for dehydration as she has been struggling with her bottle feeding and my partner went to the bathroom and decided to jerk off while we are in the children’s wards when he could just go home and do it as I’m staying here with her and i honestly find it disgusting and on top of that because I can’t really leave our daughter as she is 1 month old he’ll come in to see us in the morning and eat the breakfast the hospital gives me because he’s “hungry” and does the same to my lunch and dinner they provide even tho he gets to go home and make meals for himself and I only get what they can provide as im stressed of leaving to get food iv become really frustrated with him and I can’t take it