Do you give a cheating boyfriend a second chance?

if your boyfriend cheated on you do you give him a 2nd chance

give him a second chance but be very careful and if he does it again leave and come talk to me

yes but he must know that it is his last one

Why shouldn't you stay with someone who cheats on you? If it happens once, it will happen again. Why? If you stay with someone who has cheated on you, you've essentially taught them that they can sleep with somebody else and you'll take them back. Wow, that's pretty great news for them!
The first time someone cheats on you, he/she has the most to lose because he/she doesn't know what your reaction will be. But, once hes/shes weathered the initial storm, he/she knows precisely how you'll react. By the time he/shess cheated on you twice, three times, thirty-eight times, he/she knows exactly what to expect.

Even if you manage to get past the lies, and the heartache, a cloud will always hang over your relationship. You'll never truly feel cherished, or completely loved. Why torture yourself with feelings of self-doubt and insecurity? Tell that cheater to hit the road, move on, find someone who gives you the love and respect you deserve. You have the power here. People will only treat you as poorly (or as well) as you allow them to.