I think it was said on the human metrics website that INFJ's are extremely capable lovers as they are extremely empathetic, caring and genuine people.
I know finding the love of my life has turned me into an emotional ball of fire, lol. She's an ISFP, but a very damaged one (sympathy complex to the max), so my overbearing-ness is something she wanted in her life.
If you want somebody who'd follow you to the ends of the Earth with one word, date an INFJ. They will be forever loyal. Just be careful about hurting them or even adding a little distance. We see it immediately and become VERY volatile. I know that I can get very very pissy when I feel animosity lol. (INFJ hate conflict and are very attuned to your emotions. My girlfriend is depressed right now and it's taking it's toll during exams season FML)