Boyfriend said something offensive and my mom is mad at him?

So we were all chatting a few evenings ago. My sister is travelling to Asian countries backpacking and we are so worried about her going alone. My boyfriend chimes in oh she should be careful there’s lots of people that have been killed over there.

I got so angry at him and I could tell my mom was too. It was such an insensitive thing to say. He has apologised but I’m so mad at him. Isn’t this like basic social skills? He just said he wasn’t thinking and put his foot in his mouth. I’m finding it hard to forgive him. Should I tell him how bad his social skills are?

Boyfriend said something offensive and my mom is mad at him?
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