Can their marriage keep on truckin'? Tom Wilson and Lillian Vilchez hit the open road in his beloved bus on Married at First Sight's Tuesday, October 18, episode, as seen in Us Weekly's exclusive sneak peek.

The FYI relationship series' preview clip shows the pair sprucing up the vehicle before taking it on their second honeymoon. "Before I met Lily, the bus was a huge part of my life, and I feel like it's not something that I'm ready to give up," Wilson tells the camera. Part of this season's focus has been on Vilchez adjusting to the revelation that her husband lives in the bus.

Meanwhile, Vilchez realizes it's getting down to the wire when it comes to deciding whether they want to stay hitched. "We're going to Key Largo, and I've never been to any of the Keys," the realtor says to the camera. "I do hope this weekend away helps solidify our decision and just brings us closer together. At this point, I need all the help I can get to make the right decision."

Tom also has concerns about whether the pair are compatible, despite their initial sparks: "I don't want to say that Lily is high-maintenance, but she is a little bit prissy, and she definitely tends to complain about little things."

A previously released clip from the episode showed Nick Pendergrast revealing his fear that his wife, Sonia Granados, wants to end their marriage. This scene was also exclusive to Us.