My Virgo wont kiss me

Im a 25 year old Scorpio woman and I've been "officially" dating my 30 Year old Virgo man for 7 Months. We've been friends for a total of 5 years. We have recently moved in together. He is very hardworking; currently working 2 jobs to support us and is wonderful to my 2 little girls. I can get VERY emotional & I'm quick to tell him "I love you" or express my feeling etc...Him on the other hand he's very complicated at times. He gets in these moods where he just wants to be alone and ignores me for no cause. Eventually he will snap out of it and come back to her as if nothing occurred. It's strange and bipolar behavior if you ask me LOL...

The sex is GREAT & AWESOME when we do get time to etc do to the kids and his work schedule. When he is at home is would rather just rest and sleep, but my sex drive is through the roof. Last night he referred to me "as a rabbit with the pick little thing hanging out" LOL. We don't have sex as often as I would like, he's not very ro mantic wanting to cuddle, and HE NEVER FRENCH KISSES, not even during sex!

I'm starting to wonder if he's cheating or maybe becoming less interested because maybe he finds me a little too "needy". I do everything from working full time, cooking, cleaning, and I'm very much into my children and their schooling. I'm beautiful, I workout and eat healthy foods, very clean and well groomed....Maybe I'm jumping to conclusions and just thinking too much into it...I'm unsure.

Do Virgos just lose interest for no reasons or causes???? We've had a great deal of arguments mostly do to his (Lack of communication) & (Wondering Eyes) while we're out on dates. I'm very jealous so this causes conflict FAST! At the end of the day we've always seem to make up because I always reach out and express how we should TALK. After he calms down it's back to normal and the routine. How do I know that he is TRULY here to stay and not going to vanish for no cause etc.....