You can hide first, such as going to the library, or sit away from him. No, I'll be frank. If you think it's too direct, you can ask her friend to tell her.

Maybe I will talk about this problem, but I'm afraid I can't speak it well (writing and speaking are two different things, so you can pretend not to speak it).

Finally, I suggest you keep a tepid attitude with him for a long time. The same is true of my relationship with my roommate. I don't think I can get in touch with my roommate. From the beginning, I paid great attention to keeping my distance. Eliminate the rivers in life. It's quite harmonious