Flirting

What does it mean if a girl uses exclamation points?

I texted her a week ago. She used an exclamation point in pretty much all of her sentences. PS: When we talked last week, she replied fast to pretty much all of my messages (longest I had to wait was 18 mins, and the shortest was 1 and 3 minutes).

I texted her yesterday 9pm... she replied today at 12am saying that she is sorry and that she didn't see my message. Basically, she used one when she said "Hey hi" and another one when she said that she was sorry, etc. So like, it was a really really short message, but still.

I checked on her profile, and she never uses "!" in her comments (even when she is replying to her friends, family members, etc). She is generally using an emoji instead of an "!".

So could this (somehow) be a good sign (considering that I'm pretty much the only person she texts with "!"s... I mean, according to her page). But like, she's not writting anything like "!!!" or "!!", etc. When she puts them, there's only one at a time.

But I mean, she did use some emojis in our convo from last week (and she also used exclamation points). This time, though, she didn't use any emoji. But like, we don't know each other THAT much, so that could explain it?
What does it mean if a girl uses exclamation points?
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