What do I do in this situation?

So there's this guy that I have always had feelings for
We had abit of history in the past
But he's recently came back - he been messaging me first whenever Im online at night

He asked me how I am, what Im upto and sometimes being a flirt

But thing is:
- he texts me whenever we are BOTH online at night (11pm+)
- we both work during daytime but Im always online and he's mostly online at night

Sometimes I would ignore his flirty texts just to play hard to get and not sure of his true intentions
But he would always try to text me again whenever he sees me online🤷‍♀️

Is this a bad sign that he only texts me at night?
Is he interested? In what way?
What do I do in this situation?
Vote A
Vote B
Vote C
Just friends
Vote D
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What do I do in this situation?
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