Rhys has Felicity at gunpoint and talks instead of shooting, presenting her with the opportunity to use Tessa at gunpoint as a shield. Once she is released, Rhys does not pursue Felicity even though she only had a few seconds head start. Likewise, Felicity did not gank Rhys when she had Tessa as a shield. Both Rhys and Felicity have shot people without talking in the past, so this was out of character for both.