Do I UNDERSTAND it? Hell yeah -- it's basic human nature. Love, lust, meeting unmet physical and emotional needs . . . I get ALL of it, and have even been through it -- twice. I just think you should end your marriage before you give in to it.
Only if it were that simple.....
It does not work for people who are already in a vulnerable position. If one was strong, courageous and clear-eyed, yeah...otherwise there would be no affair, right?
The problem is that many people have already gone past the "give in to it" stage which makes it excruciatingly difficult to extract from the OM/OW. Just like a drug addict refusing to give up heroin or meth. Intellectually, they know that drugs are bad for them, but keep doing it because of the "high."
It's no use to try to make sense out of irrational behavior because rational does not apply to druggies or people in affairs.