Well User, the unfortunate phobia you have is fueling the need for attention, from some one whom is close and shows security( a relative). Added with her couriousity plays a perfect kinda......'everyone gets hurt and/or goes to jail' kinda story. The good things are that you recognized there is a question in this family relationship and 'didn't go to town...' and she is finding someone other then the 'cute'st she had around her. Probably the reason why the new guys looks closley to you, maybe you have set a 'mental template of physical specimen' or guys are attractive to her, that look like you. It's also ok to jealous, for a little while, remember this is the physical relationship that evolved into a mental one. Be jealous, learn that you made her feel good as another human being and realize that you find some else, with in general age( or over 18), to explore( both willing) making each other feeling good.