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Nick Lachey and Vanessa Minnillo have been together for four years, and now they've finally decided to tie the knot!

The happy couple announced their engagement earlier today: "We're excited and incredibly happy about our engagement and we look forward to a wonderful future together," the two said in a statement. Congrats on their upcoming nuptials!

But how must Jessica Simpson feel about this? Her ex Nick has had a fairly steady girlfriend in Vanessa since the Newlyweds split, but Jessica hasn't done as well in the dating game. After reported romances with Dane Cook and Adam Levine, Simpson entered into a high-profile relationship with musician John Mayer, followed by one with quarterback Tony Romo. (And don't forget about Billy Corgan!)

Thankfully Jessica is now happily dating NFL player Eric Johnson - the two have been together for most of 2010. Hmm, does this mean she'll be the next starlet to get engaged? Will it be a race to the altar between her and Vanessa? Hopefully we won't have a Bride Wars situation on our hands!

But in all seriousness, is it possible Jessica Simpson would be invited to her ex's wedding... or would that just be uncomfortable for everyone?

And take a glance through our gallery below of Nick Lachey and Vanessa Minnillo looking so in love!