When you made the sacrifice to step into that machine, you were not the only one who ceased to exist. So would he.
There are questions to be asked about little Henry as well… After he stepped into the Machine, Peter did not exist. Henry suddenly did not exist either. But, through temporal mechanism unknown, Peter does exist. We don’t really know why, but one possible explanation is that Walter and Olivia loved him too much for him to be erased. Peter knows that Henry once existed. The most important question is, Does Peter love him? And if Peter loves him… even just a tiny, unconscious bit… does that mean that somewhere in a temporal limbo, Henry still exists?
This is a Procreate drawing run through several different filters on iColorama.