this is certainly a delicate situation and can really cause complications for you if your friend is not understanding of your feelings. it seems to me that you believe the relationship would not happen, you only want to get the feelings off your chest because they are causing you grief. i would question how comfortable your friend would feel sharing a home with you and walking around in a towel as you mentioned in your other post from what i can recall when he knows that you like him. how open would he feel he could be in the friendship without feeling like he is encouraging your feelings? it is kind of tricky when you live together. was the past situation he had mentioned this way?

i would encourage you to set up an appt with a counselor to discuss what is going on. this would allow you to sort out your feelings and discover what it is you really want. then you can make the decision of whether you should tell your friend your feelings and you will be clear on what it is you want from him so there will be no confusion about the relationship.