i guess someone forgot the golden rule of Socionics theory: to use plenty of words like "may", "can", "probably", "maybe", "perhaps" etc.
In other words, people fall in love for reasons unknown and that's the way it is because if love could be explained then it wouldn't be love, probably.
Socionics is a rational "system" of understanding types and relationships created by rationals. We are representatives of types perhaps but are not types, we are people.
What's the other golden rule of Socionics: To Feel before you Think about your relations.
Love is.