So confused... help!

My husband and I have been having relationship problems in the bedroom. He wants to have sex all the time and I’m just not that all into it. Whenever we fight he acts incredibly emotionally abusive and mentally abusive so I shut down and want nothing to do with him. But then when I don’t perform sexually he yells at me and gets mad and tells me I’m lazy... and then this morning it happened and it proceeded to have him tell me he doesn’t care and that he doesn’t even think of me anymore but he daydreams about all his exes that used to do things for him so for me not to worry about doing anything for him.... I’m so confused on what to do. He feels like that will make me want to be more sexual but I couldn’t feel more opposite from that.