Infidelity is unforgivable especially if you are married and have vowed in the eyes of the law to be with someone. It is also destroy a marriage or relationship.
Can you forgive them and give them another chance . Because of the welfare of your children if you already have and you do not want to destroy your family. Or you want to separate because you're hurt..
this must not be forgiven if ones in a relationship want and do infidelity. and if he or she does not want that to happen and only accident, there is small chances of forgiving.
you are married to someone because you are ready to become in a relationship and responsibility. you must not do any sins like this because this is not proper in the eyes of god and also other people. your conscience will hunt you