Husband watches porn

I caught my husband watching porn in our guest bed room 😟 he promised me he won't watch again , he didn't think it was a big deal and he would be ok if I was watching porn. I told him I consider it cheating considering we don't have much sex as newlyweds . He has a password on his laptop , he has work sensitive stuff. He never comes to bed with me because he says he can't sleep. Help!