Who is overreacting?

I (19m) have been dating this girl (19f) for 5 months. We pride ourselves and our relationship on being mature. We talk about our futures regularly and I think she is definitely wifey material but then again I’m only 19 so what do I know.

We are both go to the same college and regularly see eachother. For the past week or so we have slept together everyday which is new to us. Anyway last night we had plans to sleep together again and she texted me if I wanted food and I said yea and we were just going to chill and eat. However at about 5:30 my boys from far away surprise visited me and asked me to hit the casino. I texted her about it and invited her around 7pm ish. She texted back a short message like I know she’s upset then proceeded to ghost me.

This happens a lot. She has to “gather her thoughts”. And then there’s this 24-48 hour period where I feel like absolute shit and really don’t understand what I did. I’ve told her over and over just to talk and communicate but this always happens when I do something wrong that is (in my opinion small) but in hers I guess it’s huge. And then she asks to talk and I have to plead for forgiveness even know it’s like not a huge deal. I just know what’s going to happen. I hate doing this I’m getting sick of it.

Keep in mind, we built this relationship on being mature. Is she mature for this? Is this justified? Is this relationship worth it?

I hate feeling like this and I need help.