What does this mean?- the WH's regrets?

[pearlharbr]

This is why I believe it's important to know if H is having an affair.

If there isn't OW then perhaps it's a good idea to change the dynamics and see what happens.

If H has OW then you are enabling his cake eating. Nothing will change because he is getting the best of both worlds--a good time with OW with no responsibilities and friendship with you with no responsibilities. You put yourself in limbo and then six months to a year later (or longer) wonder why you're still in the same place.