grammar

To my kindergarten sweetheart, if I could see you again I'd tell you how much I love you, still, after all these years. How I never should have gone 12 years without telling you I liked you, telling you I loved you. I may be starting to get over you, but I will never forget you. You were my best friend, but now it's doubtful I'll ever see you again, but if only I could. I still dream of you, and hopefully one day my heart will heal. But you were my first love, and they say you never forget your first love, because you never stop loving them. This rings true, and because I wasn't brave enough, I'll always wonder if you loved me too, if I was your first love, if you've stopped loving me, or if you ever will.

Is all these sentence correct?