Hello minionpanda: Welcome to Psych Central. I hope you find PC to be of benefit.

You didn't mention how old each of you are. However, based what you wrote, it sounds as though both you & your girlfriend may be teenagers. Perhaps your gf is around 16 or 17? There are a couple of things here that strike me in reading your post(s).

First (assuming my estimate of your ages is more-or-less correct) it sounds to me as if you may be expecting (or perhaps "hoping for" is a more appropriate term) mature behavior from a young lady who, in many ways is still a child. I'm a very old person myself. But I do still have some dim recollections of what it was like way back when I was in high school. And the behavior you describe, on your gf's part, seems pretty-much the way I recall relationships being in high school. (From what you wrote it does occur to me that, perhaps, you may be taking this relationship more seriously than is your gf.)

The second thing that strikes me here is that it sounds to me as though you may be wishing your gf could be the young lady you want her to be, which may not be the person she is. At least from my personal perspective, a man (or a woman) can't expect their partner to be the person he or she wants that person to be. One has to accept one's partner for the person they are... warts & all. I'm married. And there are things about my spouse I'd dearly love to change. But I can't. (I'm sure she feels the same about me!) Still we love each other, & are committed to one another, none-the-less.

As time passes, both you & your gf will mature. And perhaps she will grow into the woman you'd like her to be. Maybe she won't. Time will tell. But I think, at this point, you simply have to accept that she is the young lady she is. And part of that includes saying things that make you jealous & "messing" with you. Anything else is simply likely to lead to additional discontent on your part & strain on your relationship. Of course, it's certainly important for the two of you to talk these concerns through to whatever extent your circumstances allow. (It sounds as though it's pretty limited at this point unfortunately. I don't know as there's a lot you can do about that at this point other than to wait until your situation, & your gf's, change.) Good communication is the bedrock of any romantic relationship.

So... having written all of that... here are links to 3 articles, from Psych Central's archives, that (hopefully) may be of help with putting your situation into some perspective along with links to 4 articles on the subject of long-distance relationships:

You Can Only Change Yourself

You Can't Change Others: Letting People Be

9 Steps to Better Communication Today

The Challenge of Long-Distance Relationships

Love in Long-Distance Relationships | Healing Together for Couples

7 Tips for Long-Distance Couples

https://psychcentral.com/blog/solve-...ship-problems/

My best wishes to you both.