When I first mentioned it to him, he asked if he could see it. I felt comfortable showing him my arms because he didn't overreact or dramatise it. He tends to think of it as a bad habit, like drinking too much or smoking.

Since then, he would occasionally ask if he can see my arms. He never made a big deal out of it. If I don't mention it for some time, he brings it up.

I like that he's never freaked out by it.