For Lian Nuije, the age difference is very important in establishing a household, the bigger the gap between the two, the worse thing in establishing a household.
Moreover, Ye Chen is still too young, he definitely doesn't know how to treat a mature woman like Su Mengxin.
It could be that Ye Chen is only interested in Su Mengxin's beauty , when Su Mengxin has become an old woman, it's possible that Ye Chen will leave Su Mengxin.
That was something Lian Nuije much didn't want so, she didn't want something like that to happen to Su Mengxin.
"That aunt will not happen, I really love Mengxin, so I will never leave her." Ye Chen said with very strong determination.
Ye Chen could not possibly leave Su Mengxin, he would never do something like that.
Ye Chen is a very responsible man, he certainly won't leave women because of something like Lian Nuije said.
Creation is hard, cheer me up!