Is it normal that after 6 months of being seperated by someone...

Ive been with her for two years. And seeing her again, feels like im seeing her for the first time. Ive taken her out before, but sunday seeing her made me soo nervious knowing that anything i do wrong could be the last time i see her.mShe makes me feel, in a way, 17 years old looking for something serious.  Me knowing your out there makes me feel like shiit. a person's most precious gift is attention, and that is something i feel like im giving her but shes been receiving it for 6 months while I've been not.a person can give you many things, but if they don't give you their attention then you basically wasted your time. Thats how i feel. These next days are the most emotional days i think I've faced in my life. But I'm willing to do so. Because. Even-though he has giving her attention, i have history. Im here well motivated to give her all the attention that a princess receives from her royal duties, me being the person with the history i know what she likes and i know what moments are special. I know i cant out-do myself against him do to my absence , but I'm a familiar person to her heart. Ive seen her for a significant amount of time these past few days. And shes a stranger to my hands, shes a stranger to my lips, and shes a stranger to my eyes. But my heart points me to her saying its her who we been looking for. I asked her if they had sex, she said no at first. But it bothers her when she lies to me so the next day she said yes that they did have sex but she regret it as soon as she was done. I belive her in everything she says just because when we was together she was never the problem. I was. She says thats why she wana takes things slow. But in my heart that bothers me. She called him her boyfriend but never admited to him that she loved him when he told her he loved her. But everytime i read something from them while i was gone my heart beats rapidly.