I guess it really depends on the person,and what he/she wants in a relationship.I don't think a woman would feel comfortable with her Moon in Virgo squared by my Saturn-Neptune opposition and opposing my Moon. It could be very emotionally unstable......especially with it being a mutable,cadent grand cross. I wouldn't want somebody's Saturn nor any of the outer planets nor Mars conjuncting my Saturn/Neptune midpoint,opposing my Moon in Pisces in 6th either....that could feel very difficult to me...even could feel rather sick when being with them...especially when Saturn/Neptune midpoint is known as the health problem midpoint in Cosmobiology,Uranian Astrology.
I think that it's different for me because my Moon closely opposes the midpoint of the planets that are squared my Moon for the t-square.
My Sun in 5'20 Scorpio trine Moon in 3'11 Pisces too......so it would be nice if somebody's Moon,Sun,Venus,and or Jupiter is in Cancer forming a grand trine,opposing my Sun/Moon midpoint. I would be okay with somebody's planets conjuncting my Sun and trining my Moon. I wouldn't want somebody's planets conjuncting my Moon,then it would be squaring my Saturn,Jupiter,Neptune...if close enough,opposing my Saturn/Neptune midpoint.
I just believe that if somebody's planets oppose my Moon and square my Saturn-Neptune,Saturn-Jupiter for a grand cross, it will just add more stress for me...
my stepfather's Pluto was also in a 4th leg to my t-square. Let's just say that living with him was no picnic. I really believe that he was unsettling for me emotionally.
He was also rather abusive with me and to my mom.
My Moon is square my Varuna in Gemini with only 10 minutes of arc, and so if somebody's Moon is closely opposing my Moon,it will be squaring my Varuna. Having a square to a transneptunian(actually a transplutonian..it orbits beyond Pluto) might not feel good to her. It could feel too intense for her.
so I believe that it really depends on what a person wants in a relationship.