"Married at First Sight" season 3 has gone with a few hiccups in regards to how stable the three couples are and how well they suit each other.

However, as seen in the preview trailer for episode 6, this tension will only continue to rise as the couples start questioning their commitment to their new relationship.

The trailer showcases Ashley and David fighting in bed while there also seems to be some confusion between Neil and Samantha. These two couples have notably had the rockiest experiences on the show thus far but that doesn't mean Tres and Vanessa are out of the woods as they also show some level of issues between them.

In the trailer, Vanessa does point out that Tres might not yet be ready to be a husband. This is the first major roadblock between the two as they do have the strongest relationship in the season thus far. According to a report from Zap2It, it is even likely that they will come on top as the leading couple for this season.

Ashley and David are notably the most hostile couple as the two cannot seem to get along. Ashley has, however, formed some sort of bond with David's mom and the next episode, which will focus on their in-laws, might further explore this unique relationship and in doing so may help Ashley and David resolve their issues.

This doesn't automatically mean they'll really get together as the report points out Ashley is not even sure if she has any feelings for David or if she even wants to develop any.

Smanatha, as the report indicates, is trying to keep Neil at arm's length and is likely not going to pursue a romantic relationship with him, instead settling to be a friend. How this carries over with the in-laws has yet to be seen.

"Married at First Sight" season 3 episode 6 airs this Jan. 5.