My girlfriend (28F) has a royal inheritence in the United Kingdom she wants me (29M) to be a part of. I'm not sure what to make of it all.

We’ve been together for 11 months. She’s from the UK, I’m American, and we met at a coffeehouse in New York City. I was working as a freelance writer at the time, and she was over here as part of an internship. She was an instant personality match for me. Very smart, charming, and has a great sense of humor. I walked her home a few nights after we met. She invited me up for coffee, we did the deed, and that was pretty much it. We saw each other every single day for the remainder of her trip (some 6-7 months). She had dinner at my place almost every night. She met my parents. Her bag was always packed at my place. My parents were a bit surprised by the whole thing, but said we were cute together and that’s all that seemed to matter.<br><br>I knew she was going back to the UK, but I never once thought about it during our time together. Then, one day, it was time to go, and she did.<br><br>It’s now been about 3 months since she’s left. We’ve talked everyday via text, but only FaceTime once a week. Throughout this time, things couldn’t be going better. I was really beginning to think she was the one, and I was starting to make future plans in my head. I’ve never been more comfortable with someone in my life. <br><br>Last night, she told me that she had something important to tell me that she had been hiding for a while. The first thing that came to mind was that she was in a relationship before she came to the US or something like that. But that wasn’t it at all.<br><br>She said that she isn’t who I think she is. I assumed she meant spiritually or something, but again, that wasn’t it. She told me that she comes from royal blood. Not royalty mind you, but royal blood. Apparently, she is the great-granddaughter of HRH Prince Henry, Duke of Gloucester. To put it in simpler words, she is the great-granddaughter of the brother of a king. The king in question died 13 years ago, but his daughter is still alive and part of the royal family, so apparently, my girlfriend is the great neice of a princess. <br><br>Ok. So what? Well, she went on to explain that her father is part of the line of succession. Apparently, 8,000 people are part of the line of succession, but I really have no idea how far down the line he is. She said that he has a title, but never told me what it was. That’s all fine and dandy, I guess, but what does this have to do with me? Well, she wants me to come to the UK on a visa, live with her, get to know her family, and be part of all of this. <br><br>It’s a lot to take in. I can’t say that I’ve ever been to the UK or know much of the royal family, but part of me always thought this stuff was so cool. And here I am, being invited into it? But I don’t know. I have a hard time leaving my parents, and I know my mom won’t be happy if I’m over there for an extended period of time. But at the same time, this is a once in a lifetime chance. What should I do?