I’ve watched it a few times now (okay 6) and I don’t see love. I have no doubt she cared for him and was happy, but I think she only would have accepted for Henry if she had agreed to his proposal. Maybe it is my Captain Swan blinders but I still can’t see it…
To be fair, we aren’t given a lot of scenes with them, so we don’t really know what they were normally like together. I think Emma came off as appreciative and caring towards Walsh, but cautious more like someone she had just started dating, not someone she was in love with. Also, when she got her memories back, she was basically breaking up with him, not even considering to tell him the truth or even ask him to wait for her until she could come back. Very clearly, not true love and I don’t think we are meant to see it that way.
Walsh obviously didn’t love her at all, but he actually came off more sincere “in love” seeming than Emma. The only thing that felt off was that the rushed proposal — he knew she wasn’t ready… true love would be more patient (but obviously, the proposal was a last effort in attempt to bind her to the life in NY).