[Len wasn't expecting the kiss, but he catches Barry as the speedster throws himself at him, and then their lips are pressed together. He's stiff only for a moment, then his lips warm to the kiss, and his arms tighten, bringing Barry in close.

He feels the desperation and affection in the kiss, and yet Barry's still using that word he is starting to hate - "But".

His eyes narrow at Barry, but his arms don't loosen.] What do you want, Barry? You called me to apologize. Did you do that only because you figured I wouldn't forgive you, just to assuage your conscience before you move on? Or do you want me back?