Black Ink

I started writing in black ink,
Why do you ask? I don't know, it's convenient, I think.
There was no specific reason for blue,
The change came from nowhere, I have no clue.
Maybe it symbolises something inside,
Maybe it doesn't, I can't decide.
Whatever may be or whatever has come,
I can only be happy I'm far from glum.
I wonder if anyone will read into it,
Citing the theory that maybe I'm smit.
Whatever may be or whatever has come,
I hope you still like my writing some.
Please rest easy, don't worry for my sake,
You have more worry already than you should have to take.
You might have noticed I don't write you in black,
That wasn't on purpose either, it's an answer I lack.
Whatever may be or whatever is done,
I'm really glad I met you, I've already had so much fun.