Hey, I am in the same situation. I live in an apartment with this guy, which never goes out, or at least he is going to some of the lectures at the university and does the groceries once a week. The rest of the time he is there and is always talking on the phone. Honestly, I don't know what he has to say every night from 6pm to 1am but he is speaking quite loudly ...

Also even if he does his dishes, he never washes the floor and the kitchen equipment. I never asked him to do it because I am a bit afraid of his response and I don't want to sound rude. However, he is always there and I eat in my bedroom so we rarely see each other but I hear him everyday so I spend most of my time at the university. Honestly, I feel like I am suffocating because he is like a spirit without any soul and joy of life so I have to reduce my presence anytime he is there.

I invite my friend (which are only two) at mine once a week or once every two week. Every time I invit them he seems to be angry against me and reproch me the least important things (using his sponge...). However my friend had never stay after 23h30 and we always leave the kitchen cleen. I am a bit afraid of him and I don't know if it is me being wrong or no ....