So me and my girlfriend have been going out for a little more than a month. For the first few weeks we were happy, but then I realized she wouldn't kiss me. This seemed slightly strange to me, seeing as she would kiss me on the cheek, so I asked in a polite way, "Why not?" but she would always just say something like "Mmmm..." and change the subject. I was then mildly worried that she didn't like me, but then again she did ask me out and so I thought, "Of course she likes me, we wouldn't be going out".
But after that, I was always the one asking her to see me instead of her asking me to see her and she would never call me anyway. I have been worried for a while now and feeling a bit upset inside. I saw her the other day and we had a nice time eating dinner with my sister's friends and mother, but I could see by her face that something wasn't right.
Then, the other day I got a message from my friend, Jasmine on Facebook.

I'm very suspicious of her; I've known her for 9 years and she tends to be a bit of a stuff stirrer, but then again what if she's right? It makes perfect sense why she doesn't want to kiss me. But then again, she has snuggled with me passionately and made it look like she likes me. And why didn't she just tell me? To be honest, I don't even think I've been clingy at all. I've just been a normal boyfriend; I've called her and I bought her a souvenir when I went to Edinburgh. That's it.
I'm really confused and slightly upset right now. What should I say to my girlfriend? I really like her and don't want to break up with her. Please help me guys ;-;