Welcome To Plathvilleseason 7 has honed in on Zac Wyse & Lydia Plath's wedding, sharing the lead-up to the monumental event for the family, but their focus on one specific detail could spell trouble for the newlyweds in their relationship. As Welcome To Plathville season 7 shows more of Lydia and Zac's relationship, it's clear things have moved quite quickly.