I have been dating my girlfriend for five months, and despite having very little issue with her personality, our sex life is terrible for me.

Its not that I dont find her unattractive per se, I just don't enjoy sex with her. She doesn't understand my needs despite me communicating what I want. I have sat down with her multiple times and told her what I would like, and even though she agrees she has never been able to satisfy me as a man.

She herself always reaches orgasm and enjoys sex, and though I reach orgasm that is the only enjoyable part of the sex. The rest feels like a chore. I have told her this, but despite so many conversations nothing has changed. We even went to a counselor but nothing has worked.

So finally after yet another boring night I decided that I was going to respectfully ask for an open relationship, just so that I can pursue my sexual desires elsewhere while still maintaining the other aspects of our relationship. Also since I really don't like having sex with her I told her that she can pursue other men if she wanted.

She was very hurt that I even asked, and refused. She also said she still wants to have sex with me, and doesn't want an open relationship or other men, and she doesnt want me to be with other women. It is not my intention to hurt, but at the same time as a man I have needs. She says that its horrible that I would even ask.

Am I the asshole for even asking?