...shit. It probably won't help if he remembers aloud that it was actually yesterday morning, either.
"It- well -"
The thing is, he was doing so well at pretending he hadn't gone completely insane and fallen head over heels in love with Pete after ten hours' acquaintance. (And rutted like wild animals after two.) He had managed to almost entirely forget how that happened! But Eric, unlike Pete, actually knows him, and knows that he doesn't behave like this.
He does, actually, have a justification that makes sense of it. The revelation of Pete's origins and abilities probably qualifies as trauma-bonding, and definitely enough outside his context that he had no pre-defined way to react. This isn't something he or Eric could've predicted in advance, because nothing like this has happened to him. It's not even unreasonable for him to have reacted like this. He's received stronger proof of Pete's character than he should have access to yet.
Unfortunately, the whole argument leans on secrets that aren't his to tell. And even he can tell that its legs are wobbling.
It's not as if teenagers never... make hasty decisions. And he is a teenager. He could play it off that way, and he'd get away with it, and Eric wouldn't even be suspicious.
But -
he doesn't want Eric to think he's being a silly little boy. Flinging himself after the first person who shows an interest.
...maybe he should stop acting like a silly little boy, then.