I think since JEFFERSON was stuck in house until Emma showed up, knowing about the curse, seeing his daughter… nothing changed. I think he knew his name so he introduces himself as Jefferson in SB. He said he could not come out of his house until Emma came. Now he is free to move about and can actually try to get back to FTL or the alternate reality. He thinks his daughter will be there but when he gets there his daughter is not there and that is why he is going MAD trying to get back to SB where he could at least see his daughter at a distance.