I actually feel like this fatty really is excited to get married. She seems to have genuine feelings with the arrangement I guess. So I dont know what to think at this point, but she could be a possible enemy when they find out the MC killed one of there organization members. So its kinda hard what decision she will make when it all comes to light. Since this is a reversal story, shes pretty much those fat strong dudes you find in manga/anime.
Also curious if Zhiyan got offended when he said he wouldnt marry and take over the Tang family, or if shes offended he hurt her nanny. It was just way too vague. All we know she ran to her Nanny over the MC. Tho I dont want to get too involved with her atm cause shes failed to impress me, Ive also already called for her being replaced by the Class rep-chan at this point.
ps- if shes indeed hitting the treadmill for the marriage (from all the comments), then good on her. Thats the right direction to go.