Recognise that the views of Muslim extremists do not reflect the views of other Muslims, and most Muslims are extremely peace loving men.
Forget Stereotypes The first thing to do is to drop any preconceived notions you have of Muslims.
At the present time Muslims are not getting the best press, and this is of course due to extremism.
Another important point though is that while Muslims are allowed to date non-Muslims, they are told to date 'women of the book' meaning Christians or Jews.
It is expected for there to be a shared belief in a single God, though this will depend again on the personal discretion of the man.
Depending on how devout the man is, there are also many things to consider practically and there might be some sacrifices that you are not prepared to make.
All this should be discussed with your partner before the relationship progresses past a certain point.