They Start To Avoid Eye Contact
When you talk to your partner or spouse they seem absent and don’t register the conversation. They also avoid eye contact. It is needless to say if someone avoids eye contact it means that they are not interested in you or they are hiding something and are afraid that you will find out by looking them in the eyes.
It is universally known that the eyes are the gates to the soul. If they don’t share any eye contact with you it shows that they are hiding something from you. Liars often do that because they know that what they are doing is dishonest and it is wrong but they still do it. You might choose to confront them on that but the conversation might be futile and cause an argument.