Ahoy sailor, red flags abound!

It starts with Starbucks and it ends with electronics (or then some!). I don't mind that he wants to keep his finances separate, but he used Starbucks as an excuse for "silly spending". Part of me thinks you two might have rushed the "moving in" part of the relationship, but this isn't what this thread is about.

Don't ask us how it should work... ask HIM how you two want to work this out.

Communication is key in this. And if you two don't communicate clearly how to arrange all of this, the doubts and guessing continue. You need to air out this issue.

And I'd also be wondering why he feels like he needs to pick up the slack... he should have known what he was getting himself into beforehand.