1. The man women call when there bitch-ass boyfriends treat them like shit, but they would never date because they are "too nice."
2. The "real men" who were always there for the women that they love, but always hear the following phrase. "Sure, (insert ex-boyfriend's name here) was a total jerk and cheater, but I wanna give it another try." See unrequited
3. The guy in the office/classroom who catches shit from everybody, but still helps everybody out when they need him. Also, slow to anger.
Girl: I hate(insert ex-boyfriend's name here) because he cheated on me with my mom.
Nice Guy:Forget him. Why don't me and you just go out for dinner?
Girl: Just as friends, though. I'm gonna give it another try with (insert ex-boyfriend's name here)
Nice Guy: *vomits violently*
Everybody in Office/Classroom: Haha, look at (insert nice guy's name here.)
Supervisor/ Teacher: Somebody has to stay late to work on this project.
Everybody in Office/ Classroom: *making up various bullshit excuses*
Nice Guy: Fine, even though I was supposed to be on a cruise this afternoon, I'll stay late.