Why should OP be flattered? Would you be flattered if someone of the same sex tried to kiss you and their excuse was "I didn't know you were straight?"

Anyone who tries to kiss someone without consent is bad. I'm pansexual(can be attracted to any gender) but that doesn't mean I am fine with anyone trying to randomly kiss me! The guy knew she was lesbian, do there was no way she could've been interested.

No matter the gender or sexual orientation, you NEVER have the right to force unwanted sexual attention, or kisses if you don't define it as sexual, onto anyone that doesn't want it and if they do want it, then you wouldn't have to force it. I'm a bi transwoman and if you try to touch or kiss me when I am not interested and you know I'm not interested, you're getting the shit slapped out of whatever you tried to use to touch me (or I'll use my foot or knee if you put your groin or butt on me.)

A lot of gays and lesbians date people of the opposite sex when they are in the closet still and aren't sure about their sexuality.

She dated someone 15 years ago. That probably means she was trying to figure things out.

Because you don't always know your sexual orientation right away.

Straight guys don't date guys because they don't have the majority of the population breathing down their neck ready to outcast, abuse, violate and attempt to 'cure' or 'correct' them if they don't date guys. Homosexual people are pressured to conform to the norm, and some date people of the 'opposite' gender because they have society telling them they should be into them to the point that some of them honestly have to date them to realize the attraction is not there. Then 'gold star' assholes like you and the guy in the post come along and tell them they "aren't actually gay/lesbian" because they dated someone, or maybe a few someones of the opposite gender trying to understand their lack of attraction to that gender. People saying shit like this is so ****** up. It's like saying someone can't be attracted to only brunet(te)s because they dated that one blond(e) in middle school. Do people realize how ridiculous they sound when they say it, or do they somehow honestly think that just because they know exactly what they are attracted to and 'always' have, that somehow everyone else does?

The stupidity in this comment astounds me...as others have said, not everyone figures their sexuality out from the get-go, and some date the opposite gender just to avoid all the hate. My male best friend and I dated several times throughout high school before he finally came out to me as gay in college. He said it just took him a little bit to figure it out. Believe me, he is 100% into men, and that doesn't change just because he happened to date a woman when he was a teenager. Lady bits completely gross him out.

He doesn't seem like OP at all, based on the FML. And if you meant he seems to like her, that doesn't work. If you truly liked someone, you would want them to be happy, not try to force a kiss on them after they said they're not attracted to your gender.

If he truly liked OP, he wouldn't think she was lying about being a lesbian and would respect her.