Let's see --- you are also his friend and lover. I'm not one to usually show statistics, but I've seen the 2 year thing average for an OW/Affair. It will most likely fizzle out.
Tell us more, and we can encourage you and help brainstorm solutions. Btw--how did you find us...do you have Divorce Remedy?
sg Love is PATIENT, love is KIND, LOVE never fails / DB since 2001