> thought it was my once in a lifetime love.

This doesn't exist. Love takes work every day from both sides. I firmly believe you can fall in love with almost anyone. Making it last is the hard part. I tell this to every newlywed - wake up and choose to love the other person every day. Even when you want to scream in their face and think you hate them. Choose to love them.

This asshole wasn't making this choice. And to be honest, you're young and in lust love. You probably weren't making this choice either.