They are just boyfriend and girlfriend. It makes perfect sense for the bf to say NO for staying that long.她的妈妈可能还是比较传统的,和他们住在一起,她可能还觉得别扭。 It takes time for bf and mom to adjust each other.
一来就住在一起,That is not a good idea. If I were her, I would rent a small apartment close to bf and stay with her mom if necessary.
一来就住在一起,That is not a good idea. If I were her, I would rent a small apartment close to bf and stay with her mom if necessary.