She knows.
YES!!! Confront him & tell him he can't do that!
Generally the law is not applicable when the other parent does not live in the starte.
Tell him/her, and see where it goes If its true love, you can conquer the distance between you and him/her
He is hanging out with another girl you know and by his smile if he looked stupid then he is cheating on you and if he is with you all the time he is not cheating on you if he is just don't cry
If they start to act weird towards you and better towards another person.
She tells him that Tom is cheating on Daisy with another woman.
i will tell him to not do it again because that is bad. i will give him another chance.
Yes, It is, so don't, and tell other people not to do it please!
Depends what you talk about and whether or not you would tell your partner. If you wouldn't, then it is.
She looks more at the guy than you. Check her phone.
Your girlfriend's cheating
* If your father is widowed or divorced then it's his private business and you will have to trust him as to when he decides to tell you that he loves another woman. If he is cheating on your mother then tell your father you think it is wrong and to either leave your mother or stop the cheating.