This is so true about most guys. I've experienced it first hand as I'm sure a lot have. The flow was a little awakard but that's okay, and I don't think your should capitalize every word in the line, just the first word.
They're Call You Their Boo And Tell You
^^They're should be they'll
They're Be Quick To Do It To Another Girl,While Their Doing That To You
^^Same thing with this line, they're should be they'll.
Other than the technical mistakes I thought it was pretty good, most people write about guys cheating on them, but this one wasn't about being cheated on it was just stating what most guys do to get what they want from girls, so that added a little twist. Great job!
Wow i really liked this poem alot not only were you truthful about most guys you were even truthful on how you have changed....great write! I have a new outlook on men like you--but i still got my eye out on men in general--lol!
ps. my ex did this to me it just took me a long time(2 yrs) to figure it all out