I'm in a relationship with someone I'm settling for or at least think I am. I'm 21 years old and our

backgrounds are so different. our relationship moved so fast that I didn't have time to realize if I was settling. His fraternity brother the entire time developed feeligs for me, everything came out and I broke up with my boyfriend. I think I mistook the feelings of missing him for the feelings of coming to terms with being alone, I've never been alone. I went back with him i hurt the other. preparred to drop the feelings I had for his frat brother, they never went away on either part. His brother has never pressured the situation has sat back and let things work out, he is what ive dated in the past. My current boyfriend is introvert and shy, while hes a good guy I know he would never hurt me. The other guy challenges me, scares me, it's a risk. I think I might be settling bc i ran back to my current boyfriend because it's safe, but the feelings for the other are unlike anything ive felt and its not just because its new, he's more honest with me then he has ever been. HELP!