A little gerbil brings you a gift!
Interacting Nonsharer: when a yume/selfshipper is nonsharing, but okay/ tolerant of doubles. this can present itself in many ways, such as feeling like their version of their f/o is only theirs (with headcannons applied perhaps) but other person's versions of that character are their own, being nonsharing but being okay with doubles because they aren't jealous, or anything else.
Semi-interacting Nonsharer: when a yume/selfshipper is nonsharing, but okay with doubles to a certain point. this can present itself in many ways, such as being able to casually talk with doubles about their f/o, but if it goes too far, they may get very uncomfortable and leave the situation. the certain 'point' can change day to day, or stay the same.
Non-interacting Nonsharer: A yume/selfshipper who does not feel comfortable interacting with doubles at all for any reason.
this is just something that i came up with, if anyone has done the same, please consider these alt flags!
yumeship flag template by @felidaety