She thinks with her head, i think with my heart

Ok this is gonna be long. Please keep in mind english is not my native language and i keep my best to put this thoughts in words. Even if you don't read this, it still helps me that i wrote it down.

This is the second time we are together. We fell in love when we were 16. We were together for 5 months, then she left me. I was heartbroken...had a very rough time for 1 year. Last summer i came back to my senses, found new friends and stuff.
Well school starts then and she is my schoolmate (unfortunetly). It was much easier for me this year and i could act as myself again in school. She saw that... she wanted me back. We started talking again and stuff...i truly didn't know what i wanted. I made a mistake. Went back with her. It's been 2 months and i see the same problem i saw before. Here it goes:

She thinks with her head and i think with my heart. I am the one who is the emotional one. I am the one who always believed in love at first sight, true love and soulmates. She doesn't believe in this things.
She was my first everything, my first love. She loves me and i love her, we trust eachother. I know that. But that's all it is...the problem is i don't feel her love. I only know it. She nevers shows me she loves me with actions...she never gets jealous.
I don't know how to call it but she is emotionaly cold... and i need to feel some kind of emotional satisfaction or whatever you would call it.
You know that feeling at the start of the relationship when you fall in love? When you can't stop thinking about that person, or when your heart starts beating faster when you see her... Well, she just jumps this stage... She was in love at the beggining, maybe 2 weeks... but then she skips to the part of where you just love eachother...and i am the one who is madly in love with her... and this just doesn't go together. I hope you know what i mean.
She is the kind of girl i would marry. But that's not what i want in my years. I need somebody who will be at least a tiny bit crazy about me and will show me that.

I don't talk to her about this things because i don't even know how to begin or what to say. I've been going crazy for 3 days now because i can't stop thinking about this stuff...she doesn't even know anything is wrong. I know she can't change herself because this goes deep into her personality, that's just the way she is... and nor can i change myself... i tried being like her and i didn't feel like myself.
I sometimes feel like i just created all this problems in my head and are pointless. I sometimes feel like i over complicate things because people said that before... but the truth is i just can't feel happy anymore. It's killing my inside and it only brings me suffering. The only way i could be with her would be if i wouldn't love her so much and tried not to think about her so much but that just wouldn't feel like me.

I love this girl and will love her until i die. The last 10 seconds of my life i will spent thinking about her beautiful face, i always knew that. This loves goes really deep, it's that kind of first love... but no matter how much i love her i just find it hard to be with her. Please give me some advice on this.

 

You two are very different. I'm not saying to leave her, but I think its one of those things where you either have to accept it or get out. You say you can't talk to her about these things but I think you have to, just to know whether or not you are wasting time in this relationship.

 

Drama, angst, jealousy, "eternal" and tragic love...sounds like a disaster waiting to happen. You're looking for emotional high.

I would say your gf is ready for a happy long term relationship and you are not.