<human>: Can you give me the gist of the text in a nutshell?

So, we've been going out for a month, awesome relationship, best sex ever and we talk pretty much everyday on g chat.

It's about **11:40 PM**, I tell her I'll take a shower and be right back. I take the shower, come back and watch the rest of this movie instead of messaging her. She sends me a message at **00:30 AM** saying "Long bath?", I sent her a "lol". Our conversation goes as follows:

**Me**: You okay?

**Her**: I hate when people do this to me, I hate it.

**Me**: Huh?

**Her**: When people don't message me back, I wouldn't do this to my worst enemy.

**Me**: What? I had no idea you get upset if we don't message each other every 5 minutes. 

**Her**: If you're busy say you're busy, don't leave me waiting.

**Me**: I'm sorry, I don't have the phone glued to my hand to message you all the time. It's not going to happen again. 

**Her**: It's the one absolute thing I despise.

**Me**: Don't you think you're over reacting a little? 

After a minute

**Her**: Ok, what happened happened, I'm over that.

Is this a red flag? How can someone get so upset because I took an hour to reply? **And this is the SECOND time this happened.
<bot>: My girlfriend got angry because I took about an hour to get back to her, wondering if she's crazy or something.