OliviaGrace - I agree with what stitch has to say on not meeting the man at his home. If you can't even trust the guy, why go to his house ? If it is the first time you are going out with him, then ask to meet in a very public place, i.e. a restaurant or coffee shop. I would never go to a man's house on a first date, nothing to do with whether he is a muslim or not.
Also for the benefit of any non-muslims reading this, there are millions of muslims in the world, as there are millions of christians, jews, hinddus, etc. Would you have asked the same question about the ring if he had been a hindu or taoist or buddhist, etc ?
Sorry, but I don't want any prejudice created here. How a man wears his ring has absolutely NOTHING to do with his religion. Even in christianity ther has never been a relgious edict by the pope or other religious authority on wearing wedding rings. The way most weddings are celebrated (white dresses, etc) and rings are symbolic, and have not been set down in religious texts or by religious authorities.
Also stitch, you say Islam forbids a man wearing gold ? Could you please give me a reference for this ? I haven't read the Koran cover to cover, but I come from a muslim country and have never heard of this edict before. Most muslim men I know wear some kind of gold, either rings or chains.