Okay, so it's not my job to educate you on the Lauren Conrad–Speidi feud. YOU SHOULD KNOW. (But in case you're unfamiliar, here's a quick explainer.)
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Basically, Lauren believes that Heidi and Spencer were behind the rumors that she had a sex tape.
Anyways, a few days ago, Lauren posted this Halloween Insta of her son, captioned "This little lamb had his first trip to the pumpkin patch today 🎃."
Soon after, the fashion website Who What Wear tweeted an article, saying, "Could Lauren Conrad have picked a cuter Halloween costume for her baby?"

Spencer responded to their question, saying "yes," as in "yes, Lauren could have picked a cuter costume for her baby."

He then said that in his opinion, the costume could've been cuter.

Some people thought Spencer's dig at Lauren was hilarious:

But others were like, "Spencer, enough."
@spencerpratt
@spencerpratt Hey @spencerpratt, if it wasn't for @LaurenConrad you would not be famous, your wife would be a nobod… https://t.co/83uM8Grh8f