When your in a relationship, you have a responsibility.
& that's to honor that other person with respect.
Whats needed to do so is self control.
If getting drunk allows for you to be temporarily outta control, then you should consider not drinking because your chances of disrespecting that other person is bound to happen.
So by drinking, your saying hey I don't care what happens with my relationship.
I know this is far fetched, but its completely true. Its true that some have better control over themselves when drunk, but if you know you can't control yourself, then you are forfeited your relationship.
yes it's cheating. if you're in a relationship then you should be mindful of these things and not just think you can act anyway you please and think you can get away with it because you had some lame ass excuse like "i was drunk"
Cheating is Cheating. Kissing someone else while your in a relationship is cheating. Does not matter how drunk you get. I don't think I recall any time that I've been drunk & didn't know what I was doing.. Unless he blacked out and acted a total fool then I would reconsider trying to talk to him and see what really went on.