I been with my girlfriend for 6 months, and in the beginig we stayed around each other mainly everyday all day. But lately I been noticing that I been getting irritated by the way she say stuff I guess you can say mainly her voice, but I still care for her and I really worry about my relationship with her I don't want to fall out of love with her.she is a great girl and lately as of this week I haven't been wanting to have sex with her I kind of feel emotionally disconnected sexually. She's beautiful. I go to school and work a lot and spend time with my kids as well as her and lately I just been fustrated around her lately but I want it to work with us so ehat should I do?

You must face the reality that caring for a person or for a special someone is different from loving him/her truly! You can take some time off, give yourself some space to analyze what you really feel and think of her. Ponder what or who is she to you, what are your plans for her in the future!

It could be you were not in love to begin with. 6 months in a relationship is no time, it is during that time you may discover that person is not the one for you.
Break it off. It is not fair to her to be having these feelings without her knowing.