Roseanne and Tom Arnold's big Twitter brawl: Read it here

Ah, social media — how did we ever stalk our exes without it?

Of course, checking in on a former love carries big risks — as Roseanne Barr discovered a few days ago, when someone informed her that her ex-husband Tom Arnold had recently tweeted about getting rid of some old wedding videos.

Though Barr and Arnold divorced nearly 20 years ago — and both have been married at least once since — there still seem to be some raw feelings between them. So when Barr responded to Arnold’s message with a tart tweet of her own, he replied in kind, leading to a drawn-out sparring match filled with spiteful accusations (“You sold my grandmother’s sewing machine”), dismissive condescension (“Yes mother dear”), and outright hostile insults (“For christ sakes. I remember when you used to be a comedian”).

Don’t worry, though — it all ends on a positive note, with Roseanne congratulating Tom on the recent birth of his son Jax, and even doing the kid’s star charts, or something. Good; to paraphrase comedian Morgan Murphy, I hate it when Mom and Dad fight.

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And according to another tweet from Roseanne, the story might not quite be over yet:

Jackie Thomas reunion, anyone?