Leana always had big Karen energy to her: from voice to appearance to the way she talks/her manners.
I would love to see a parallel universe where instead of (clearly) settling for Leana Matt got into shape, became a chad and found someone beautiful both inside and outside to be with because I feel like she rubbed off a lot on him. She may have not been the Yoko Ono of the group solely being the reason behind the breakup as some speculate, but I think she is definitely at least partially responsible for the way Matt is today.
My theory on Matt settling as I called it is based on the assumption that Matt is not super popular among ladies (not a very bold assumption I think), based on him being an ugly ass balding fat soyboy, stories Matt told himself over the years and the hypothesis and/or rumor (idk what to call it) someone else made about him basically only dating once in college before Leana (it was mentioned in the thread somewhere not long ago.)