Did this dude insult my sister?

The guy been little sister has been dating told her that "cats are on their way" when she told him she didn't want to see him for New Year's (long story). They've been fading out for a while now, especially since they're kind of long distance, plus the dude's just kind of a douche in general. Anyway, she was trying to figure out what he was trying to say to her, and I need to figure out whether I need to go kick his ass. He's said a number of things that are messed up to her, but he's also Russian so maybe some of the expressions just don't translate.
Did this dude insult my sister?
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