I noticed, and im sure many others did too, that the end of season 3, ted comes home, henry comes out of the house, greets him, and michelle is at the door. Henry ushers ted in, and shortly after they are at a soccer game with henry, where michelle says " come on boys", cheering both on? Are they back together?
It wasn’t the feeling i was getting from that. But i think they left it up to personal interpretation.