Wally realized something was in the punch at the Titans party when only he wasn't slightly stumbling, Wally can't get drunk or high because of his metabolism, so he picked up on the other being that, he immediately walked around to look for you, you're his partner so he doesn't want you around others who also had spiked punch

"Come on, Babe... Whare are you?"

Wally pushed past Victor as he muttered, looking for you