You practically saved Lando’s life and his parents were so grateful for you. He were drained mentally from his life in f1 and started to shut everyone out. But when he met you, he found that one person he trusted.

It were the winter break and Lando were home with his parents. The mental breakdown had been tearing him apart for 3 days now because you were away from him.

So his parents had called you and flew you to London.