Increasingly more convinced that the MIB and William-Dolores storylines are taking place years apart. There are many indications that they are part of different timelines of the show.

Yes, I've wondered about this too. Especially because some of the timelines seem to overlap too closely; for instance, when we know Dolores is very far away in the park but she passes out and she's talking to Bernard (at one point I think she's in Pariah). The other option of course is that these two scenes are not linear and that her conversations with Bernard have happened in the past.