How would you feel if your husband said he didn't want you at the hospital with him and wanted his mom instead

They have finally decided to remove the tumor on my husband's brain. My husband told me he doesn't want to hurt me but he would rather I stay home with the kids. He says I get too stressed out. I cry so much and he's already scared and needs someone that will keep him calm while he's there, and not freak him out. Especially after surgery. I have horrible anxiety and everytime we've went to a doctors appointment I would bawl my eyes out. He also said his last hospital stay I was shaking so much that I knocked over his tray when trying to give it to him I tried my best not to because he expressed it stresses him out but I really can't help it. His wants his mom to be there because she knows how to stay calm. I just feel extremely hurt. I know in the end he's the patient and his needs trump my wants.