I got INFJ ^^ I actually tried too different test sites for it and got it from both. I think some parts of it's are accurate to me and some as much. I found the romance part it had most different than what I feel like I am XD This is very true for me too: "Even though their presence can be described as very quiet, INFJ personalities usually have many strong opinions, especially when it comes to issues they consider really important in life".
I got that too. The only thing I remembered from the description is something about us being able to change the world with our dreams, and I thought, "OMG, I'm a mage!!!!"
Re: Cullen and a romance with a blood mage. I can see the possibility, actually. For example, Cullen falls in love with a mage, and he deeply cares about her, but then he discovers she can do blood magic. He will freak out, no doubt, but if he really loves her, then I can see him trying to convince her to stop using blood magic. Because it a self-destructive path, and it's dangerous, and he wouldn't want to lose her to demons. If she says, "Ok, I'll try, but I need your help (manipulative little b****)" then Cullen will probably stay in relationship with her to support her, and do what a templar must do - make sure she's not a danger to anyone, including herself. However I can't see this being implemented in a game, but it could work in a fanfic. It could be interesting.