1. They talk.
Yes. He still talks to his EX and says he doesn't. But their conversation is so benign that you would just look crazy for bringing it up, so now you just have to live with the fact you know and can't say anything.
2. He's in debt.
Sure, he pays his credit card bills online but now you know his balances and that he's racking up all those late fees rather than saving for the ring.
3. The ring.
Actually, he's purchased one! And the emailed receipt is his proof that you're the one, and that you've ruined your surprise.
4. He's "that guy."
He emails his buddies about cars, girls and video games. All that time you told yourself he wasn't "like other guys" has been wasted, welcome to reality!
5. You're crazy.
Yes. This is the worst realization that can stem from checking in with him when you should just be checking out of your relationship.