clitorial vibrator

So my husband found a vibrator in my possession and he is upset! Saying he feels like I am implying that he hasn't been satisfying me by me using the vibrator... well in all honesty, I don't cum with penis penetration but can only come with clitorial stimulation through oral sex, which he never ever does! He just dives straight in after receiving oral sex from me. I got tired of having to beg for it so I helped myself out with the vibrator but now he is mad and claiming that me using that is like me cheating on him! Huh!!!!?