I feel like he doesnt support me....

Let me start by saying i am 100% in love with my fiancé.

I support him in everything. If hes excited im excited. If hes having a hard time im there. But recently ive been struggling so much. Tuesday will be a year since my miscarriage. Today i spent over 12 hours (i got there at 6:30 am. Went to bed at 2am and woke up at 4am) at the hospital while my grandma had a major brain surgery (his grandma died there on January 19th so i said he didnt have to be there because i understand) but he wasnt very supportive at all. He wasnt comforting or anything. I got home and told him it was a super hard and stressful day and he hugged me and then walked away to smoke weed with my cousin and play video games and i wouldnt normally care id stay up with him but i have to be up at 4:30 am because my other grandma is having hip surgery and hes supposed to drive me to meet my mom and grandma because he wont go but its 12am and im afraid he wont get up. I dont know how to bring this up to him....it just hurts that he had ALL DAY to play video games but now hes gonna stay up late and play instead of help try to comfort me when he knows i need it. Any advice on how to approach this???

**Update**

I brought it up last night as we were going to sleep at around 1:30 and he didnt realize that he wasnt there for me like he thought he was. As for the person who asked how i could be 100% in love with him you dont know our relationship other than this. Hes the sweetest guy and he tries his best. And thank you ladies for your input.