Can My Marriage Be Saved?

My wife and I have been married for 22 years. I recently discovered that she has been having a secret two-year love affair with a man in another state that works for her same company. This follows another one-year affair that she had had about 14 years earlier with a man who lives in the same area as we do now. After my recent discovery, we rationally discussed where to go from here, as we have a vulnerable 10-year old son to think about (we also have two older boys in college). My wife and I still get along, but she struggles to be intimate with me, and confesses she has never really been "in love" with me. She acknowledges and appreciates all that I do for her, but it is becoming apparent that she may never really be fully happy with me as her husband. We have agreed to go to counseling to try and work things out. But I can't help but wonder if staying in the marriage is the right decision for me. Even through two affairs, I love and adore her and simply wish she would love me back. But if she hasn't fallen in love with me over the course of 22 years, yet fell deeply in love with two other men during that time, can it possibly ever happen? Please help!