I haven't seen it mentioned on this thread but cats definitely do not like being left alone for extended periods. Maybe the delay you encountered contributed to the cats behaviour
I was once told of a couple that went on vacation for two weeks (and presumably had a "cat sitter' for the duration)
When they returned from vacation the cat immediately jumped on their antique cabinet, looked them in the eye and proceed to pee all over it
I was once told of a couple that went on vacation for two weeks (and presumably had a "cat sitter' for the duration)
When they returned from vacation the cat immediately jumped on their antique cabinet, looked them in the eye and proceed to pee all over it