You don’t deserve to be treated like this anyways so you would be farther ahead to leave the other one and let them be happy with the person they cheated on you with. If you do decide to stay with the other just know that they will say they have changed but they really have not. I have heard people say that all the time and in the end they just do the same thing over and over so the way i look at is is once a cheater always a cheater. No matter how much the other person says they love you or they have changed into a better person they have not they are just lying to you so you will take them back. So basically the cycle keeps repeating and you have no trust for your spouse. If you have no trust for the other person you are in a relationship with there is really no point in being in a relationship with them. They will just keep hurting to to the point you have no other option but to be sad and depressed all the time. You won’t want to talk to anyone about your relationship problems because they are going to tell you you are not happy and you need to get out of this relationship because it is not healthy for you or