Most Helpful Guy
The next time that he tells you that he loves you, ask him this: "If we got into a situation where someone said to you 'I will kill either you or your girlfriend. You choose who I kill.' who would you choose. If he doesn't say "Me" immediately, he doesn't live you and his words are meaningless. Then, show him this post.
Most Helpful Girl
Tell him he is moving too fast. If you leave it to fester, it is going to come back and bite you. Be honest - if he understands, great. If he gives you hell for it, then he wasn't worth it anyway.