My OH doesn't like tattoos. I don't have any, but I have always wanted one, and in general I quite like them. I recently achieved something, a sporting success that I've worked very hard for and am really proud of. I'd love to get a small, not visible except in underwear, tattoo to commemorate it (sort of like the Olympic ring tattoos that Olympians get). I just like the idea of having a reminder of something that I'm proud of and worked so hard for.
But he'd hate it. He really would. He just doesn't get the point of them, even the Olympic rings he thinks are tacky and off-putting.
So - AIBU to get it done anyway? I think if it were the other way round, I'd be happy for him to have something that he really wanted, even if I didn't particularly like it. But equally, I don't want to upset him or have him feel that I've done something that is a real deal-breaker.