That didn't take long

Less than two weeks since returning to work and I'm already in need of a vacation. While I like a few of my CoWs, there are some that are showing some real asshole signs of late. One CoWs feels it is perfectly okay to have large gatherings of people eat lunch in her cube which spills into other work areas. She sits right near our mail sort area and her goof-tard boyfriend, a fellow CoW, and this old broad she hangs with from another unit are all sitting there while I am trying to get mail ready to sort. Goof-tard comments, "Oh, I guess this isn't a break area." I say, "No, it's not." They all get up to leave for one of the appropriate break areas. As she walks past she says, "Cranky, cranky." I continue to do mail while I contemplate a response and I go with emailing her that while she finds me "cranky, cranky" for being annoyed at this, I found her rude and thoughtless for thinking any of that was appropriate. She now claims she wasn't saying "Cranky, cranky", but was saying something about her cousin Frankki which is bullshit, but people never want to own shit anymore. She also says I'm rude for "directing such anger when none was directed towards me". I will allow that I can't verify that Frankki b.s., but I point out that my email was perfectly reasonable and that it remains rude and thoughtless to think having more than one person into your cube for lunch is okay. I eat in my cube on the regular, but I don't have a bunch of people in it and it isn't like we don't have a SCHEDULED time for doing this particular task. People's rudeness has been a constant source of irritation now that I'm back out in the world.