Kicked my bf out

So last night I looked through my boyfriends phone and he was texting another girl and she was sending Nudes and they were going to plan to have sex the following day. I woke him up and he slapped me twice in my face, so I kicked him out and today he took most of his clothes and things for work. I miss him so much and I’m in denial if wether I did the right thing.. I miss him and I’m so so so sad. I haven’t slept alone in this bed without him in almost two years. I am so sad and want him back home