I asked for first design feedback in weeks. I got a pissed off answer that he is losing patience. Seriously? YOU are losing your patience? Like you are the one working on this day in day out haha. Fukkoff

"Losing patience" probably means:
I have no time to actually review the design, but looking at it for 3 seconds tells me that I don't really like it but I can't say why, so better reply to the designer with "I'm losing my patience!".

One of a million reasons why a lot of clients are cunts.