They will never understand.

Boy: I broke up with her. She's just too much for me. She only cared about her appearance. Always had to look good, and took forever to get dressed! So insecure. And she'd often call me or text me asking where I am, who I'm with, telling me not to smoke, not to drink. She's so clingy! She'd always cry when I say something slightly mean. She can't handle anything and she'd get jealous easily. I could barely talk to other girls! She's so annoying! I had to hide it from her.

His Best Friend: So, you broke her heart because she wanted to keep your eyes locked on her? She wanted you to see that you have the prettiest girl under your sleeve and not think otherwise? And because she cares about you a lot? And she just wanted to hear you say you love her? And, you broke her heart because she just wanted you to commit to her? She thought you were faithful, but you lied so she could find out later and hurt even more? She just wanted the guy she loves the most to love only her. And you lost the girl that loved you like no one else could. You see? You didn't want her when all she ever wanted was you.