Well, now you can really relate to how people who are stereotyped for various other reasons feel !
It is what it is. And it's going to be very difficult to overcome that stereotype (unicorn hunters) even if it isn't true (which none of us can judge from here).
But I agree with the others that you may need to do more studying on the nature of 3-way relationships before you even bother going through the frustration. It rarely plays out the way you think
That's not a 'negative' - only a more realistic projection. Interpersonal dynamics between people just get trickier as the numbers increase and for the majority in our culture, the deep discussion of love and sexual interactions is not encouraged.
Knowledge and communication skills are the glue that hold things together and lacking that glue...............well, you fill in the blanks.