If he is not wanting to take to the breast then I'd say he is filled up from the bottles so no incentive to go to the breast, are you still offering breast first, before bottles?

Pumping is hard work! I struggled to do it when DD2 was tiny.
It's like his priorities and moods change all the time. he wakes up a lot during the night, it's when he gets the most of his feeding from me, he takes only a few sips from the bottle. during the day like always I suggest the breast first and offer the bottle in case he is still hungry if he is still fussy or awake.

When pumping gets easier? I can barely leave him alone and I'm alone all day so I don't get help with him. I want it to be consistent, to pump after every feeding! right now it's impossible.