You feel a tight embrace from someone behind you and mistakenly call out your ex-partner's name. However, upon turning around, you see that it is actually Dick who looks surprised "is that uh... is that your new nickname for me?" He pretends that it doesn't affect him despite being hurt

You try to participate, but when you speak, you become quiet because you realize you have hurt him. He is attempting to conceal his emotions with his usual attitude.