To me it sounds like your only problem, Kelly, is insecurity.
There is nothing wrong with you, however feeling insecure isn't a very nice feeling.
To be honest I dont really know how to deal with insecurity but there is bound to be plenty of information on the net. Or you could talk to him so he understands how you're feeling - not necessarily as a partner, but tell him as a friend.
"When I was 4 years old, they tried to test my IQ.
They showed me this picture of 3 oranges and a
pear. They asked me which one was different and
did not belong. They taught me different was
wrong."
- Ani DiFranco -