If you suspect your spouse of cheating you can confront them, but you had better have some hard evidence for two reasons, if they are, they are going to deny it anyway, if they aren't, they are going to be hurt by the questioning.
I collected evidence before confronting my spouse and she still tried to lie about it. Cheaters are cheaters and they will lie until they are blue in the face because they don't want to face the reality of the situation.
I will pray for you.