Why won't she return the favor for me?

I have had the same girlfriend for 2 years now. Everything is awesome, except for one thing, I perform oral sex on her a lot ...and she really enjoys it, but she never ever returns the favor anymore.....she used to, but not anymore ...and when I question...

her about it she just ignores me....it makes me feel like I'm not attractive to her or she's just using me for sex... I don't know what to do...but our love life (well mine at least) sucks. And I'm getting tired of it .......What do I do, how do I change this?

WELL SORRY TO HEAR THAT BUT YOU CAN TAKE MY ADVISE IT SHOULDN'T BE US YOU ARE ASKING THIS QUESTION IT SHOULD HAVE BEEN YOUR GIRLFRIEND.
HAVE YOU TRIED TALKING TO HER ABOUT IT BECAUSE IF NOT YOU SHOULD JUST TELL HER WHAT IS ON YOUR MIND AND HOW YOU ARE FEELING ABOUT THE SITUATION THAT YOU ARE GOING THROUGH.

GOOD LUCK!

Hold out .
End of story

Do not hold out, you'll only make things worse.
Explain to her that you really enjoy oral as much as she does.

Some people just cannot take putting another's genitals in their mouths. While other people love the pleasure that it gives their partners.

Bottom line, we can't tell you why - we can only speculate. You need to talk to her again and try to get an answer. Don't be forceful about it, you're not demanding oral - just some equilibrium in sex between the two of you.

hold out, definately. If she asks, then bring up the subject.