should i be listening to myself?

[942]

i started an internet relationship two years ago and everything was great till a couple moved in downstairs from him. he was lonely and liked their friendship but somewhere feelings got confused and im pretty certain he called it off between us. i was distraught for a wk because then things were back on again. He is stll friends with them, has refused advances from her and still wants me with him.He gets aggressive though whenever i object to something about them and things get tense between us. he is keeping his distance from them though and talks to them but leaves it there. but im scared of being hurt again and everytime i get a certain thought my stomach literally ties up in knots and a lot of it gets tied up when i think of something he has said. I dont want to doubt anything and sometimes I think I am making a mountain out of a molehill. I try hard not to tear up or even let negative thoughts in and im saving up to get to him.
To make sure he wasnt wasting his time, i tried telling him to find someone else and that we could be friends. To look elsewhere but he said he didnt want friendship he wanted me to love him and even tho our fb relationship ended. some friends did it for me cos i refused to he started it up again.
i have so much hope for this relationship even though i have been warned i will get hurt and that it wont work. so the stomach knots start again.
is this my bodys way of telling me something? cos if im happy and calm no tightening in the stomach.