IDK is text slang for 'I don't know'
TTYL is text slang for 'talk to you later'
I'm not sure about LY, but I'm guessing its 'love you'
I don’t understand the language in this question sorry.
Answer:
What excerpt are you talking about?
Explanation:
I think it means "poorly" but I'm not sure. It could also mean I loved pashtam or something like that. Hope this helps ^-^