[She isn't an overly suspicious person. She has self doubt and insecurity. She has a history of betrayal. And yet in the moment she will accept a person at their word unless they are being clearly shady which Pavel never is.
She kisses him back, enjoying the tenderness of this exchange. The intimacy shared without words which are difficult to choose. And, you know, the kissing. It feels good.
She isn't running so it can't be all bad! Maybe it will spur her on to identifying her feelings sooner than it might have or maybe it will lead to complications. Hard to know yet. Magic 8 ball says, "ask again later."]