Question: how to know when your husband is falling out of love?
Answer: He leaves you on the backburner. When his focus relocates to other hobbies or he takes more interest in his work then you, it could be a dead giveaway that he is falling out and away from you. ... 
Eye contact. ... 
Initiation is lost. ... 
Distance. ... 
Emotionally disconnected. ... 
Criticism. ... 
He doesn't care.