When you are next out having dinner together look into his eyes and tell him you want to ask him a question and you want him to be totally honest with the answer, then, while keeping eye contact, ask him whether he really likes you or just wants to get into your pants.....if you have any intuition whatsoever you'll know by his response and the way he behaves from then on....G

I would be careful with the not calling him because he may think you are not interested in him. If he really likes you he will make the effort to get to know you before trying to sleep with you. And he will respect it if you say that you would want to wait for a while.

Stop calling him, guys just after "pants entry" will leave a couple of messages then give up, guys who really like you will leave lots of messages and eventually come round to check you're OK. This of course raises the question, does he like me or does he *like* me - because guys that come round to check you are OK are really great best friend material.

Decide that if you want to date him when you'll sleep with him (or if you'll sleep with him at all). Be honest and tell him that you're not even going to think about sleeping with him until x date (a month, a year, an engagement, marriage, etc.). If he just wants sex, he won't bother with the waiting around.