Girl didn't respond to message, is it worth it to message here again?

[VVVVV]

I randomly fell all over for this girl I used to have feelings for, which were lost, or covered up after she got a boyfriend. So last night I gathered the courage to message her on Twitter, it's been most of the day and all of last night and she hasn't said a word directly to me.
I know she doesn't hate me, because she used to flirt with me all the time, just after she got a boyfriend I lost almost all verbal contact with her.

If this has an relevance, she retweeted this some time after I direct messaged her.
"Even when I decide on something I still regret not picking the other choice in any situation."