Husband sex drive

Is it normal for a 26 yr old sex drive up decline? The reason I ask is we have been dating for 4 yrs and lately, he saying is kid too tired and stressed from work to have sex. I’ve taken in consideration if he cheating but I don’t think so because he work a 12 hour shift. Comes home after work. N he sleeps half the day away on that Saturday. So I’m like okay. Maybe he is too tired. So recently I bought a vibrator and I would porn videos whenever I get a little tensed. I’ll use it maybe 2x out of the week. He got so upset with me when he saw it one day reaching for the rubbers. But I told him I only use it when he too tired to sleep with me and he was upset saying i hurt his ego and I can’t wait on him. I just told him that I do try to wait on him but my job is stressful too and sometimes I need sex to relieve myself and at least I’m not going up nobody. So ladies, who is wrong here? Me or him? What do y’all think?