Hmmm. Something to think about.This is one area where I actually like what Socionics has to say, because it presents the idea of "romance styles." The styles are based on which Perceiving function is preferred. Let's see if I've got this right: Si (SJ's) is the "Caregiver"; Se (SP's) is the "Aggressor"; Ni (NJ's) is the "Victim"; and Ne (NP's) is the "Child."
My understanding of the Ni romance style is that it's concerned about the likelihood of success in the relationship. Therefore, it looks at whether the attraction is mutual, or at least has the potential to be mutual. It's actually more comfortable with being seen as attractive first, with being a "Victim" of love, and, under Socionics theory, prefers the Se "Aggressor" type in a potential mate. Basically, since you care about the future of your love, you want to know that you too are loved. Your loving them is important too, but you're not likely to give it a shot if you don't believe there's a chance of reciprocation.