So, he's either leading me on or leading OW on. I lost my cool and have no further answers or anything to show for it, which is to be expected.
The answer is yes.
Rejoice, it's simple.. He wants his cake and eat it too. He wants the stability you are providing and the extra curricular activities she is.
We've seen a lot of these situations. The truth is that he will continue cake eating as long as you allow him to. Sadly, these situations do not usually turnaround until the LBW decides enough is enough and decides she no longer wants to be married to a lying cheater. (By the way, trying to pretend to not want him won't work. Many LBSs have tried that manipulation tactic and it almost always backfires.)
Rejoice, I highly suggest looking up the threads of Kitkat. She was a lesson in exactly what not to do in this kind of situation. You can learn here two ways, by reading how to handle and how not to handle things.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018