okay, I totally understand we are talking about Eddie "I don't like to talk about my feelings or my too personal life" Diaz, but why on earth would you be so quick to deny your relationship is getting serious.
I mean, I don't like the woman, but she sat at your damn bedside when you were shot, probably have been with you and Buck through most of your recovery, and now is going to introduce you to her family. You and your son. And sure, she's a fake Latina and all, but on the show, she comes from a Latina family, and you guys have any idea how important is in Latin culture when you take someone with you to a family affair?
I know the answer, but still.
This is not going to last.
Also!! when the doc asks for any new stressors and Eddie says no, that everything's been great. The way he looked at Ana when he asks "right?" is so hunted, like he needs confirmation that everything is okay because he is not sure.
Of course, after being shot you cannot expect things to be perfect, but assuming this is his first panic attack, triggered by Ana saying she's not Chri's mother or whatever, I can imagine that things are not as perfect between them as it looks like.
Therefore that's why he is so fast to shut down any comment about him being serious with Ana, and could explain the way he looked at her when he says that everything is okay. The way he says "right?" got stuck on my brain.
Anyway, these were my two cents on this.
And I didn't mean to write this much