Would you think much of this

Your boyfriend told you that the second time you guys ever talked on the phone he jerked off to the sound of your voice. Its sort of questionable but considering he’s never made me feel pressured into having sex idk if my feelings of being uncomfortable are justified. I mean he wouldn’t even hold my hand or hug me without asking permission because he Didn’t want to overstep his boundaries so why would he jerk off to my voice you know ? Also anytime we’re together he gets Horny. It doesn’t bother me I love having sex with him but I’m wondering if he’s just super attracted to me or a nympho. He was a 30 year old virgin if that means anything. And I’m 24.