Boyfriend advice required

My bag went missing in my current boyfriends house it had my apartment keys and bank card in it. I told him off for taking out his work stress on me I should just go home. He agreed. When it was time to leave I was struggling to find my bag and he called the police. The police made him scared and he offered to get a taxi home for me.

I called the locksmith to unlock the door and change the locks. costed me £150. Then he calls me a few days later to say he's sorry and he loves me.

Why would he unnecessarily call the police?

Should I go back to him?