i'm already in a relationship but going by what we have going on right now, i'll make a list
i need someone who is clean and hygenic
i need someone who i'm emotionally compatible with (i.e. a friend)
i'd like someone who is male and has a penis, but i would not entirely rule out an ftm or cis female partner
i need someone who's willing to be in an active d/s relationship with me and preferably is an experienced dom
i need someone who isn't physically or emotionally abusive
1/2/5 are the only hard limits i have in a relationship, but i'm not sure i could spend the rest of my life with somebody who's boring in bed so 4 is a close call unless you have something else going for you that really makes up for it
well maybe they judge everything you say and do because they can do it better
don't forget, women are always right