If your partner is truly contrite and sorry, and if you can accept the soul bearing, then you have the power to forgive and move on.
It depends on how happy your relationship was before this happened.
Are you prepared to give up your relationship, or try and let time and contrition be the great healer.
Only you can know this, and I am sorry for your pain.
It could be the end of your relationship, or it could be the glue that binds you together forever.
You give forgiveness, in return you get a loyalty that is strong.
Sorry I cannot give wiser words.
Hope either way it works out for you after the pain.