[He's of the opinion that it's not selfish to mourn when you need to. Her father is dead. Will be dead. That's a serious loss and Garrus doesn't think anything poorly of this.]

I don't mind, Tali. And your Aunt's fine. She recused herself. Didn't want to be a part of what the other Admirals were doing. I should have said that from the start but it slipped my mind. She was still rooting for you. You didn't lose them both.

[Because the 'they both' was pretty clear.]

And you've got people on the Normandy. They can't replace what you've lost. But we're here for you. Vas Neema or vas Normandy. Or von, when you drink too much.

[Maybe a tiny joke will help, just a little.]