My mothers bf ped saturday night I'm trying to be there for her and finish this semester?

Life is funny just last week Monday I saw my mothers boyfriend alive he was walking pretty swift to the grocery store with ease..I saw him while going downtown to school. Later on I went to the gym and talked to my mother I could hear him in the background saying tell her not overdo it in the gym..He was so worried about me however the next day while going to Kidney Dialysis he was in a cab and had cardiac arrest..the cab driver was smart enough to take him to a nearby hospital and the dispatcher contact my mother. He died for 10mins and they bought him back..When my mother got there he was in a coma and they put him in a medically induced coma for his survival since Tuesday I stood by my mothers side going to the hospital everyday for hours at a time..6plus hrs everyday..my mother is scary so I have been spending the night at her house everynight with the exception of friday, she was with her gf..I have cooked for her etc..We saw him saturday, visit a family friend and my uncle pick us up..my mother receive the call that he ped so we stayed at my uncles house and came home yesterday..she spent the night at my apartment..I feel for my mother because I went through something very fact similar when my grandmother I lived with all my life had ped however I didn't need people around me 24/7 but I know people are different. At the moment I attend grad school full time and the semester is almost over and I am so behind in my work..I feel bad my moms bf is gone and I stuck with her through all of this but I really need a lil' space to finish this semester off being I took out thousands of dollars in loans for these cles. Im doing the best I can but I can't even do clwork she is literally around me 24/7 I only have privacy when I use the bathroom..we sit in the same room together for almost a week I am extremely overwhelm and when I try to start some type of clwork she tends to talk alot..I love her and will remain by her side..but do you think Im no good for wanting a lil' space..I'm so behind in the school work, washing clothing and doing stuff just to function..do you think Im wrong as a daughter for needing a lil' space?