<human>: I really like this guy as a person. We feel very similarly about the world: similarly liberal political attitudes and career paths, share a love for God and relationships but are not into 'the church' and overall have similar values when it comes to family. We have great conversations and enjoy doing similar things. 

At first I found him attractive, but as time has gone on I find myself less attracted because he is often very nervous when we hang out and all I've gotten are stiff hugs as we part. Also he has never been in a relationship before or slept around or anything. He has lived a lot more conservatively than me in terms of everything. I have had relationships and in the back of my head worry that my lack of innocence combined with his lack of experience may become an issue. 

If this were any other guy I would read this lack of affection and  initiative towards any physical contact as a lack of interest, but he has told me many times he really likes me and stares at me with puppy dog type look. He has already introduced me to his family too. 

How long is reasonable enough to wait to see if he warms up again and can relax? I think I may feel that spark again if he presents himself as confidently as he did at the beginning, but in the back of my mind I worry this could have a spiraling effect. The more attached he becomes, the more nervous he gets, the less attracted I become. I never really felt self conscious about my sexual experience either, but with him I do, so I'm not sure if that is more just an issue I should work through or a legitimate thing that could negatively affect us in the future.

Summarize the given text in a few sentences.
<bot>: Guy is very nervous around me which affects my feelings of attraction, and I worry that his lack of relationship experience and my lack of innocence could become a problem.