<human>: Give me the gist of the text in a nutshell

Me and my girlfriend have been dating for just under 6 months. I really like her, enjoy her humour and company and we get on really well. This is my first serious relationship. 

She lost her virginity when she was 16. I had never even kissed a girl properly until she came along. She is very flirty, affectionate and sexual, I am none of those three. I am reserved, I rarely show affection in public beyond holding hands, but when we're alone I'm happy to kiss her, hold her, hold her hand. 

I am a virgin and we have never done anything very sexual, beyond me touching her breast whilst kissing. She recently revealed to me that she wants to have sex with me, I have no idea what to do. I see virginity as something that should be cherised and lost to someone I really love. I am not in love with my girlfriend just yet but I like her very much and she is not in love with me (as far as I know). She knows I am a virgin and knows my views on virginity. 

I have tried to avoid talking about sex as much as possible but she is very enthusiastic about it. I've tried to deter her by suggesting that I was inexperienced, I would probably be bad in bed but it hasn't worked. I am struggling to tell her that I do not want sex yet, until I'm sure that I'm in love with her. 

Am I being snobbish and stuck up? Should I care as much as I do about my virginity? I feel like me rejecting her could have a significant effect on our relationship.
<bot>: My girlfriend, who is not a virgin, wants to have sex with me. I only want to lose my virginity to someone I love, and am not ready for sex just yet.*