It’s not adultery if you don’t make it physical.
The enemy wants you to believe that it’s only adultery if the act is physical, but that couldn’t be further from the case. Jesus said that if you look upon a woman and lust after her, you have already committed adultery in your heart (Matthew 5:28). When infidelity attacks your marriage, the enemy wants you to believe that certain behaviors outside of physical intimacy with your spouse are acceptable, but these are just lies he is telling you to unravel your marriage. Stay away from pornography, dating websites, chat groups, chat lines, etc. You should never be looking outside of your marriage to have your needs fulfilled.