I couldn't help but notice your brother wrote you again. And... Miss Lovegood? She's been sending you messages now and then.

No doubt you've already discussed the contents with Antonin, as is appropriate, but if you wished to talk about anything with someone nearer your own age... well, I was Head Boy in my time, if you recall. I'm also experienced at negotiating the intricacies of sibling relationships which are, shall we say, less than ideal.

Only if you desire it, of course.