OUAT is actually not a show that exists in Wade's universe, so Jefferson's pretty safe. Doesn't exactly mean he's safe from Wade making fun of him or annoying him, but who is, really?

Likewise, Wade isn't aware of Bucky's shenanigans in the MCU, so he'll only be going by his memories of the guy he met when he accidentally traveled back in time. Regardless, expect him to get ignored in favor of his much more strikingly handsome partner.