Argument over baby shower

Fiance got upset because I told him no I didn't want some people going to the baby shower, after thinking about it I was going to let the people go but he had already told them I said no so we argued, I tried to apologize and told him I love him and he told me he doesn't love me and I told him he could leave if he isn't happy and I went to check on him and him and his dog were gone 😢