Confused-just reread my post to you the question at the end comes across to me a few hours later as a bit harder than I intended. Anyways the question frames it in an either/or false dilemma kind of way. You can certainly care for you wife's mental well being and a desire for a healthy sex life. The unfortunate thing is that the treatment of depression can have negative sexual side effects. On the good side you get to have a wife who may no longer be depressed on the negative side you can end up with a sexual desire and functioning that has been chemically altered and possibly depressed. Ultimately it's your wife's body and brain and the decision is hers as to what is appropriate for her own health. You can encourage her to find a professional if you believe that she is depressed or has issues to work on. I'm a big fan of talk therapy for individuals and couples I see no way that this would be a bad thing for the two of you to do.
