Am I Wrong To Be Upset With My Boyfriend

My boyfriend says I'm ruining my son just because I let him sleep in the bed with me when he's scared. He's a teenager but he ha autism. Plus he's terrified of my ex husband (his father) who was super abusive. My son's teeth have been replaced with dental implants Because my ex knocked most of his teeth out the last time we ever saw him. I have dentures.... I knew I couldn't afford implants for the both of us. I feel terrible I even let it get that far. Anyway my boyfriend says my son's a little pussy who will stay a pussy if I continue to get him sleep in the bed with me. It's not even every night. Just when he has a nightmare or is worried about his father coming back. My boyfriend even asked today" do you fuck your sin or something?" Like who says that. I told him to go home and he say I'M the one overreacting.