Who Do I Choose? Please Help!!?

Basically...Well. Hmm, I've been dating a boy named Christian for a while..but we kept getting separated. I met another guy, we'll call him Alex. I like them both. Actually, I like Alex, but I'm in love with Christian. I had to choose and I chose alex due to the constant complications with Christian. I still don't know what to do, who do I pick?!?! I'm so torn between them...PLEASE HELP!! BEFORE ITS TOO LATE ='(