IDK anymore

I (Male) fell hard for someone in a different country and its really FKING complicated, she has a BF but he's kind of a bum he's in college and doesn't really have a job (helps his dad like once a month at his job and gets paid 200) but she's the one who pays for shit. I work a really good paying job especially being a single guy in mid 20's, but I never attended to fall for her like I have, she's perfect (to me) she''s my type from body to personality (would like to be clear I fell for her before I knew what she looked like before people judge) but as I said it's complicated plus we both live in different country me I live in the south and she lives way up north. It's a good 4 hour flight to see her or a 30 hour drive, which I would do no question ask, we've been friends for years and she has been my best friend for a long time I've got to know her, and even been in her city where she showed me around I crashed on her couch in her and bf house, but I love her more than I care to admit when I was in my past relationship I really started to fall for her I know it's wrong since she's with someone else but damn I can't deny it and when I see them together I know that the smile she wears isn't hers ive seen it, that REAL smile when we talked at night and when we watched a movie that we both loved ive seen that smile and it didn't looked force it wasn't the same one she had when she was with him, but damn I don't know what to do. I could financially take care of her bring her to my country, I have the money but, I think theres more to everything. I don't care if it's just her or if my family doesn't approve of her shes all I want. I get really upset when I see her with him I know he tries I was his friend first before her. However, I know she loves him, but it's hard to keep seeing her try over and over just to get the same results from him she has even made the commit "I wish he was more like you, then I wouldn't have to keep trying as hard to be with him." SERIOUSLY what does that mean theres so many question I have to ask to that comment. IDK anymore I've asked for a real answer and she has kind of only joked about it but idk anymore I really do love her more than I have in any of my last relationships.