I don't think I will ever NOT think about this gif right here and let me tell you why.
Buck is trying so hard to deflect any positive emotion in this situation because he still feels immense guilt for "losing" Chris. Even though it all worked out in the end, he hasn't forgiven himself for it and doesn't think he ever will.
Then we have Eddie. The way Eddie follows Buck's eyes no matter how hard he tries to avert his gaze. He knows exactly what Buck is doing and he will NOT let him deflect this. He doesn't stop until their eyes meet. He needs Buck to know that's it's okay and that it's not his fault. He's following Buck's movements and forcing him to lock eyes with him.
Eddie is doing everything in his power to let Buck know that Chris is okay. He is okay. They are okay.