Yes, when ARE you going to invite me across the pond, Jo?
I like how you're sitting tight in terms of your sitch, but pushing forward with your career, growth, and DDs. This is certainly to help lead you to a better place. It is up to Andy to grow and develop himself in a way that will meet your needs and earn your love in the future.
One thought I had about him and OW2 - if it is not a 'real' R, isn't this a sign of change (e.g., she hasn't moved in with him or truly become a sub-mother for the DDs as in the first sub-R)? Although this could be b/c she's put on the brakes, maybe it also reflects some growth in him, as might his bringing the girls by to see you (didn't have to do this to pick up the couch, right?).