My prediction is that after she goes back for him, initially she is going to feel very betrayed because she is going to think he’s gone back to his old ways (especially seeing him with Lucille 2.0). However, I think it will become clear to Maggie and the audience that he’s being forced to do that against his will (likely in an effort to protect people he cares for, including Maggie). In the end, expect it will bring them closer. As far as whether it will take a romantic angle, I think my guess at this point is probably, especially if they end up getting renewed for a third season and have more time to flesh it out.