He had confessed it in front of everyone, but hadn't said it only to her.
So, when they pulled away from their first public kiss, he leaned in to whisper in his girlfriend's ear.
"I love you so, so much. You make me feel infinite."
She was shocked at how well that word described how she felt whenever she was around him. The way she felt when he pressed his lips to hers in a toe-curling kiss. Infinite.
She ignored the fact that her boyfriend used such a complicated word, pronounced correctly, and used in the right context.
"I love you too." She whispered back.
Infinite.
Yeah, that described the feeling perfectly.