My girlfriend texted me more often at five o'clock this morning.

I think she sent you a lot of short messages after five o'clock in the morning. She may still want you to call her, chat with you and be with her.

It's past five, and she still can't sleep. I guess she woke up early. She is thinking about you, but she doesn't know how to say it. So, I texted you and said I didn't want to talk about it. At this point, maybe she wants to see if you can stay with her and care about her.

I don't know how you handled it.

What I want to say is that if you care about her, if you like her, you should communicate with her more.