I am sorry that you and your wife are going thru difficult times right now........ and I would like to say that as a woman I often feel unloved or unwanted when my man (my husband) no longer takes an active part in my life & personal interest..... or when he no longer talks or converses openly with me as he once did.

In other words a female may fall out of love with a man when he no longer leaves her feeling special.... this usually happens over time and with out to much recognition until one or both parties have fallen out of love.

Rule of Thumb..... Actions Speak Louder than Words.
(what have you been saying)