I tried to kiss my friend's ex while I was intoxicated.
What made you decide to kiss them?
It was a spur of the moment thing, so I don't really remember. Maybe I was trying to flirt.
Drinking is fun but you should be careful about drinking too much. It can make you do things that you will regret later.
I want to apologize to him.
I think apologizing would be a good idea. It was inappropriate of you to try to kiss them, so letting them know that you feel bad and you're sorry is a nice gesture.