It’s a story as old as time — a man strays, promising his lover he’s “about to leave” his wife, yet months or even years pass and nothing changes. Why? Relationship experts say there are deep-rooted reasons many cheating men never actually walk away from their marriages.

One major factor is comfort and stability. The marriage often provides a familiar home life, financial security, and social respectability that he’s unwilling to give up. Even when the romance is gone, the routine and shared history can feel safer than the uncertainty of starting over.

There’s also fear of consequences. Divorce can bring financial strain, public embarrassment, and painful custody battles. Many men choose to maintain the image of a stable marriage rather than face the fallout.

And finally, there’s emotional duality. Some men compartmentalize — they may genuinely care for their wives while also seeking excitement elsewhere. To them, the affair is an “addition” rather than a replacement.

In the end, experts warn that believing a cheating man will inevitably leave his wife is often a dangerous hope. As one therapist put it: “If he wanted to, he already would have.”