Gale isn't sure why he's started to feel this way. Certainly, it's causing some sort of confusion among the party. Others have to see how weird this is.
He hopes?
Gale isn't used to feeling this way. Not since Mystra. But Mystra was different, yes? Nothing can replace that feeling. Gale assumes as much, anyway.
So what could it be?
Gale's face is flushing. His head starts to reel. His pulse starts to rush...
Actually, it's rather easy to assume that he's possibly having a heart attack. Or maybe he's been poisoned.
That, or he loathes one of his party members. Maybe it's a deep hatred. That's an easy explanation, right? Gale hadn't been slighted, but...
Okay, yeah, Gale isn't sure that this is a hatred towards someone.
"Oh, pardon me! I was actually hoping you'd join me tonight for a walk. Sort out our differences and all that!"