Playing with fire makes you more of man. It's called learning experience :)
Getting involved in bad relationships that are doomed to fail does not make you more of a man. Sure, it may create situations that are emotionally very difficult to get through, which can potentially harden you, but it's still a situation you could have entirely avoided had you exercised wisdom and not gotten involved with a cheater (which by the way many people here warned you about and you ignored their warnings). If anything you've been a fool messing around with her and now you are reaping the consequences in your loneliness and brokenheartedness.
You may be able to make jokes about it like you're doing now with some of your responses in this thread, but I know you're only doing that because you're really broken inside because of this and you're trying to shrug it off. I've partially been there too with my ex-girlfriend who was a borderline cheater, but I dumped her and got her out of my life before it got bad, so I know what it feels like to really love someone and feel like they've betrayed you. Just be more wise next time with who you choose to date.
