It's rarely an inconvenient time for you to contact me, and frankly I should have been the one to owl you sooner to see how you were adjusting to having your brother back. I understand Sirius' reluctance, and trust that he is in good health.
I wouldn't say you are writing for no purpose, especially if you want to see me soon. If I were unwell, even if I couldn't write to you myself I'm positive word would get to you likewise.
Your words make me smile. Thank you for that. Would you like to visit me at my flat, where no doubt we will have more privacy other than at Malfoy Manor?