Nick Lachey and Vanessa Minnillo at LAX airport (10/29)

A few weeks ago, Nick Lachey accidentally ran into his ex-wife Jessica Simpson at Red O restaurant (he was there for dinner and she was there casing it for a planned assault the next night). It's too bad that run-in didn't happen later because Jessica could have offered Nick a congratulations on his new engagement, you know, in between her sobbing. From People:

"We're excited and incredibly happy about our engagement and we look forward to a wonderful future together," the longtime couple announced in a joint statement.

Lachey, 36, popped the question to Minnillo, 29, on Thursday "near a beach" in California, with an Asscher-cut diamond with baguettes from Bader & Garrin, a source tells PEOPLE.

On Thursday afternoon, Lachey took to Twitter to write, "Hey all. If anyone's heard the rumors of my engagement, they are absolutely true! Vanessa and I couldn't be happier. Thanks for all the love."

"They are very happy," the source adds. "They make each other happy."

Obviously Jessica's known about Nick's engagement for the past couple of years and has been pretty upset about it. How else would you explain the fact that she's been sitting around eating gallon upon gallon of chocolate chip cookie dough? No, I don't mean chocolate chip cookie dough ice cream -- I mean actual dough. Hopefully Nick learned his lesson from his last marriage and makes sure that this time his future wife isn't a moron never meets Bam Margera.

*10 Nick Lachey and Vanessa Minnillo pictures total in the gallery:

[Mavrixonline]