My boyfriend used to punch walls?

We are dating for more than 2 years

He told me that when he got angry with his ex he hurt his hand, because he punched the wall so hard.

I asked... wtf would you punch a wall, he said :" so I dont punch her"

Ok this triggered me a lot! Why would he do that? I dont see him aggressive at all, like the calmest guy who saves bugs and tries not to step on ants... literally. So kind, loving and nice to me. If i hurt myself (Im clumsy) he leans in to kiss the body part i hurt.

How is it posible he did that with his ex? why?

My boyfriend used to punch walls?
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