One of them is bright eyed and bushy tailed, the other not so much!

Jennifer Garner and Ben Affleck went about their normal routine yesterday in Brentwood, and while the actress looked refreshed grabbing coffee, her ex appeared to be exhausted as he headed to rehab.

We wonder if the Oscar winner has run his plans to move in with girlfriend Lindsay Shookus by his former spouse? The lovebirds were recently spotted house hunting in Santa Monica, and we'd be pissed if the father of our children moved his mistress-turned-partner into our neighborhood!

Sources tell us the mother-of-three has made it very clear she doesn't want Ben introducing the kids to the SNL producer, but she knows that if their relationship is already this serious, chances are she will be their stepmom eventually.

A source tells X17:
    "Jen is trying to take things day by day. If she thinks of Ben and Lindsay playing one big happy family with her own kids, she gets overcome with emotion and sadness, so she's trying not to get ahead of herself. The fact that Ben and Lindsay were house hunting recently though makes her a little concerned. It's become clear that Lindsay isn't going anywhere, and now she's trying to adjust to the possibility that the woman who broke up her marriage could be her kids' future stepmom."

If anyone needs a lesson in how to handle a breakup with class, call Jen G!