My roommate

I have a roommate during this summer vacation, she is my best friend in my life. She lives in my room with me because she has a part-time job near by school.
I have a roommate who is still in bed sleeping when I come home at midday after my part-time job.

She is like my housekeeper, who cleans my room and washes my clothes. I share my bed with her and she chats with me. I am in a good mood when we together but this weekend she went back home to celebrate her father's (birth)?day, that's why I feel a little bit bored.

Hello,

It sounds like your roommate is also your girlfriend. 

My Roommate

I have a roommate in this summer vacation, she is my best friend in my life. She live stays in my room with me because she has a part-time job at a nearby [did you mean "she has a part time job near my school"?] school.
I have a roommate who is still slept asleep on the bed when I went get home after I finish work my part-time in the at midday. She is like my housekeeper, who could cleans my room and washes my clothes. I share my bed with her and she chats with me. I have am in a good mood when we are together but this weekend she went back home to celebrate father's day, and that's why I feel am a little bit bored.