the concept of my girlfriend, who will soon be in a different state, living with a roommate instantly makes me feel a knot in my stomach. obviously, i could worry about them becoming interested in each other, but the discomfort might be even come from them becoming emotionally close at all. 

the only way to get rid of it is either voicing my feelings to my girlfriend immediately (which overwhelms her), or hashing out why all my fears are extremely improbable. however i work it out, it always seems to be a temporary fix because the "itch" is still there. i don't want these feelings to ruin what i have with her, because she is important to me. 

does anyone relate to this kind of feeling? how do you usually manage these kinds of emotions around significant others? it's been a prominent and very sleep-depriving issue for me. 