Hw did u feel when you best take fall in love with ur Boy/Girlfriend

let me share my story.....my best friend broke up with her boyfriend for another guy. I fell in love with him...no wait...I felt so bad for him I thought I was in love and my friend was so guilty she pushed us together. It was too late to realize that it was not real love. We broke up and ended up not talking each other. My friend's other friends told her it was an awkward situation and she ended up not talking to me. And I hated her for giving in to malicious thoughts from other people when it was her who pushed me. It's been 15 years and we still haven't resolved this. I just felt bad about wasting a friendship. I vowed then that whatever happens, friend's ex boyfriends are off limits!