Why wouldn’t my boyfriend want me to go with him to his high school friend’s visitation?

I’d guess these friends are ones he was close to in HS, and he just wants to revisit that, find some comfort, without having to explain everything.

Don’t take it as a slap. 🤗

Maybe it’s just something he wants to share with his high school friends. Let him go and wish him well.

It depends on your boyfriend's relationship with his late friend, and possibly the other people who might be there.