God it's sounding worse each time you update.
Tbh what you need to do now is make the rest of the holiday enjoyable for yourself.
You can't be sitting in silence waiting for him to decide whether he's going to get up, stay up, go back to bed. You shouldn't be having to sit and have breakfast on your own when he's actually in the same building as you but won't get out of bed .
From now you need to treat this holiday as a holiday you're doing alone, plan out what you're doing day and night, write it down hand it to him and tell him this is what you're doing, if he wants to join you he can or he can stay in bed.
Organise fun things during the day for yourself, find a place with a nice restaurant, bar and go, enjoy some food and drinks and if there's music, you can have drinks in the reception area of any hotel if you don't want to sit in a full bar.
People go away alone all the time, you'll be surprised at how many you'll come across, you might meet someone that's up for a chat. I wouldn't worry about what people think, you'll never see them again.
Tbh I'd be seriously having a good think about this relationship, people's true ways come out while on holiday. This is not a fun, interesting life, he's boring, he'll drag you down, every holiday will be like this, every weekend at home will be like this.