This is complicated. But not so if you look at it correctly.
If you and your best friend love each other, being love is truly hard to find, I would go for it. If your friend liked/loved her and respects you, he will understand and want her to be happy.
"You broke up with your boyfriend and he said that he doesnt really care are he cheat on you?
Since you broke up with your boyfriend it is highly likely that now that he is dating your best friend you are either jealous and it probably isn't love at all, but you just don't like to see him date your friend.
Let them be. If you broke up with him, he is free to date whoever he wants. If he broke up with you for her, your feelings may be hurt, but let them date anyway.
allie dimeco doesnt have a boyfriend. she broke up with Sean who is her ex-boyfriend.
Get the friend to talk to him and if the friend won't slap the friend in the face
Slap him
If you want him back all you have to do is talk to him about why you broke up with him and just explain your feelings and see what he say, but never apologize for saying how you feel because that's like apologizing for saying whats real. If he doesnt want you back then he wasnt the one made for you. Move on life goes on!
i will tell him to be responsible as my boyfriend or else i will broke up with him
I can't say it's wrong (I've been in a similar situation) but you definately should not tell your best friend. I get it that you can't help it with the feelings you have, but if you tell your best friend, she definately will not understand so easily.
Take him back
Forget it... he is a player and he doesnt care about your feelings. You deserve so much better then him.
Just be friends with him because if you try to get him to go back out with you then he might not even want to be your friend anymore.