hey, dreams arent created in the way we think. They use our memories, and create a narrative from them. Mostly they dont mean anything, dreams are there to keep parts of the brain active if i remember correctly. Often, also, having dreams about other men physically, doesnt mean they're different men mentally, what i mean is, it might be a different bloke to look at, but subconsciously she thinks its you, again its to do with the random use of memories, and these can get confused! I like englishstudents theory from freud though, its possible thats she's displacing her fear of sex, by being able to have it with someone else, who is a complete and utter stranger and the most unlikely occurance! Im sure that everything will work out ok for you! And i wouldnt worry, i dream about other men all the time, but i dnt want any one at all but my bf!