What did zain mean by this

When Aliya was telling zain about the love notes in the morning at jungle,he comes clse to her and says next time you get lost in the jungle, don't sleep too close to the fire or you will get burnt. The dialogue felt too out of context to me while watching the episode and with the shock of third talaq I forgot all about it. Now I am watching this week's episodes to see if there are any clues to what is going to happen to Zaya and this dialogue sort of have me wonder. Any idea wha he meant by that?

I think it just to show that he has "forgotten her" and the love notes because she has constantly been reminding him about their love and romance.for the past 2 days. He wanted to show he didn't care and that she was just an ordinary person for him again.