Me and my twin brother?

Me and my twin brother both turned 19 in January.
Even though we are the same age, he is a lot more emotionally mature and confident than me - all the girls prefer him over me, and he tends to have a new girlfriend every few months whereas I have never even had my first kiss.

I never really minded, I adore my brother. Despite being twins I feel like his younger sibling, he calls me his Prince and we still share a bedroom.

We were very close until our birthday. We were the best team.

After that we drifted apart. He said it was a little late but he had a revelation that we needed to adopt our own identities, and learn a life away from each other. I know he is right, but I cannot do it.

I love my brother.

I love him more than my brother, I love him like my soul mate. Every time he brings a girl home, I wish it was me that he would hold and kiss. I did not even think I was bisexual or gay. . but when it comes to him I cannot help myself. I know it is incest and I know it is wrong. . . I cannot stop. I want my brother to love me like I love him, I want him to kiss me and make love to me. Now that he wants to start separate lives, I can feel my heart breaking.

When we were younger, and until we were around 16/17 (right around when he started getting girlfriends), we would play. . he would pin me down and kiss my neck or my ears to make me giggle. We have seen each other naked, and slept in each others arms. We used to practise kissing a lot on each other too until our sister caught us and told our mother.

I am so confused about it all.
I should ONLY love him as my BROTHER. But I can't.

Is it normal to be so in love with my twin?
And could anyone help me. . . ? What should I do?
I want to tell him how I feel. . .