I'm certain Matt learned over time how to deal with Jade's antics and he was only giving in to her to keep the relationship/marriage on track as best he could maybe hoping things would improve. I am sure he loved her, but didn't fully understand the depth of her need to control every situation and portray to the world they were such the perfect Disney dream couple and as the years passed and they were stuck together 24/7 during lockdown that it became unbearable. I can only imagine how hard the faux perfectness was for him to keep up with, and I'm sure his pals teased him about it.
I, like many here, at first found Matt to be irritating or off in some way and then over time realized he was the only one who was adding any life into her vlogs and saw he was always trying hard to please her (which we all would love in our partner) and I warmed to him. They both were obviously acting the part more than it being real, especially the Disney love, because it brought them more subs and freebies and $$$.