Is my husband addicted to sex?

He’s horny all the time, we have sex (or I give him a bj or handy) everyday. Sometimes multiple times a day. If I only give it to him once he masturbates when I’m asleep or not home. Once he came three times when we were doing it for like 2-3 hours and he still masturbated later! He likes to watch porn when we do it sometimes which is fine with me I’ll watch too. He has a hernia which will hurt if he pounds me too hard. But it’s like he loves sex so much it doesn’t matter if it’s hurting him later (or in the moment). He’s never cheated on me but we talk about threesomes a lot, because it would be fun to have another person. His libido is really high and mine is really low so I can’t tell if I’m the odd one for not wanting as much sex as him or if his libido is abnormal. I’d be fine with sex like 3-4 times a week. Are we just two opposite ends of the spectrum?