Knowing your history with this guy - this is just one of the thousands of warning signs that you will fail to acknowledge.
Are you being serious?

You can't be.

You mean to tell me if you were hangin with your g/f and her and one of your friends had been flirting all night, and she asked him if she could see his boxers - you wouldn't be at all bothered by it? Just chalk it up as "a good time getting tipsy" ?

Yeah right..