How do I know this girl is not a Fake?

[Joseph]

OK I recently had a Woman send me a friend request on Facebook Interested in Dating me, I really don't know if she is real or a Dang Scammer, I have been talking to her though, but most of the time her words are a little messed up, just in one week she has been telling me I love you, you are the right man for me, she said she liked my Profile, said it was Interesting but I told her I'm not an Interesting Person I'm just a Regular Guy who doesn't have anything Special in his life, who is just a High School Graduate, have a Boring Job, She is 31, I'm 26, so I would like some answers as to what I can do or say to find out she is Real or Not??, she has a Job, she said she is in Nigeria Africa for a Business Trip as well, she does sound nice but I am Cautious about all this, so any help would be Great?
and also she sent me Pictures of her and I sent some to her of me as well so she might be real but still can't be sure, I also have her number but called her once, no answer maybe she is busy.
She even told me she is real and a woman, also she even told me she wanted to meet me before my Birthday which is in March, I automatically though Holy Cow this Can;t be real cause no one would wanna meet that fast.

[Crazy Girl]

in my opinion i dont trust if ppl r doing that online. it could be true or just someone doing something to past the time or to get somebodys hopes up. if its fate n yall r meant to meet it will happen

[Dr. Stephanie]

Anyone who tells you they are in love with you but has never met you is either lying, or a complete fool. Don't you get involved with her.

[Jasmine]

if you want to if she is real or not, then ask her out for you guys can meet. if she says yes and has no problem at all with the idea of you and her meeting, than she is for real. if she makes up excuses that she can't meet you or does not reply than that is probably not even a women. it's probably an old smelly man behind a computer screen trying to mess with people's feelings and heads.

[Kittysue]

It's a Nigerian scam. No real woman contacts strange men on Facebook and says she wants to date them or is in love with them. It's a typical Nigerian scam to steal your identity and eventually try to get you to send money and gifts.
Cut off all contact ASAP and report the profile to Facdbook
I can't believe in 2014 there are still people who don't know about these scammers