Originally, Lian Yue had a bit of an issue with her elder brother pampering Saozi so much.
Even if she's pregnant and needs to be careful, it doesn't have to be to this extent.
Look at this all-around care, being overly cautious, as if afraid Saozi will get tired or strained just by walking a few more steps.
Watching this made her both physically tired and worried, fearing that such indulgence would set a precedent. Her elder brother, newly married and no longer young, inevitably pampers and spoils his wife a bit. If Saozi becomes spoiled and demanding, she might not appreciate the blessings and take her elder brother's hard work for granted.
After all, people have a tendency to never be satisfied. Where else does the phrase "give an inch, take a mile" come from?
