In this world, many things can be solved with money.
So, from Chen Feng's perspective, his uncle's relationship issues were not a big deal, especially since the money he put forward wasn't just given away for free; it was considered an investment.
Solving the issue with a "small amount of money," Chen Feng believed it was certainly worth it to fulfill his filial duties so his mother wouldn't have to worry about his uncle anymore.
Zhao Guozhong, of course, wouldn't foolishly oppose his nephew's arrangement and was instead very appreciative and satisfied.
As the saying goes, he's not dumb. Although he's currently entangled in his emotions and infatuated with Mao Xiaoling, he understands that Chen Feng's arrangement is for his benefit.
If Mao Xiaoling agreed to Chen Feng's arrangement and terms, she would be tied to this convenience store, making it hard for her to leave Zhao Guozhong in the future.