She loves me but has a boyfriend?

[MM]

Dude, I don't care how much time you've spent Skyping: you don't know this girl well enough to care about her the way you think you do. She's been hiding a huge chunk of her life from you the entire time you've known her. You have no idea what else she's kept from you in the interest of keeping you around as an escape fantasy. You have no idea how long she would have kept hiding it if you hadn't forced her hand. And make no mistake, if she felt the same way you do about her, she would have ended her current relationship without needing to meet you in person because she wouldn't have been worried about losing him if things didn't work out. Cut your losses and let this go, or you're asking for even more pain.