My opinion? He's not done with you, yet... He's still confused and undecided. I can only guess that since he last "decided" that things won't work out with OW, OW has since "convinced him" to take her back... and involve her in his life... He's getting plenty of feedback telling him "that's not cool nor OK with his mom" and possibly others... he may "dig in" to prove no one can tell him what he can or can not do...
And IF OW is manipulating him (which is quite likely), then the chances of things working out between the two of them is... well... less than guaranteed...
He still wants a connection with you...
He is still confused...
That's all it is. You still choose and follow your path as is your power.