Resolved Question

friend broke up with her ex(2.5yrs)last november.she still loved him.i started workin@the same place as him n we became good friends,@the time wen she dumped him i was both of their friend.wen she broke up with him she told me 2 be ther 4 him.i was uneasy with it but she was adamant.2weeks after she dumped him his bestfriend died n i was all he had left.i became his bestfriend(not on purpose)but i jus rly felt for him.we started sharing our pasts,we come from similar backgrounds n could relate 2 each other.we fell in love n it came 2 surface around March,but i didnt want 2 go ahead with it coz it jus didnt feel right,but he persisted,he wanted2let me go coz he saw how torn i was but he felt as tho we r ment 2be.i'm the girl of his dreams n he cant see himself without me.But i remained true and was unable to get over the guilt alredy,never felt like this b4.we have been close n that makes me feel so guilty.im not takin it any further but i dont knw if im making the biggest mistake ever