Speaking of which, if cheating is an option then the home cannot possibly be as happy as you believe. Whatever the issues may be, even if it is an illness or what have you, it interrupts the stability of a healthy relationship and needs to be addressed. Make sure the lines of communication are always open between you and your partner and they can talk to you about anything, good or bad. Hopefully, this will allow them to address the problem before or instead of attempting to find a resolution elsewhere. A relationship will not always be a walk in the park. There will be various paths you can take, rocks you may stumble on, an occasional jogger who may through you off track and make you want to push or punch them, and even a big rain cloud that will cause a down pour eliminating your sunny day. Regardless of the hardships that you guys may experience, there will always be a rainbow at the end if you work together to solve the problems, stay on the same path and have an open line of communication. Remember, the problem is not outside of the house, look within your home and make sure you secure it.
Peace, love and lipstick,