I keep having dreams where I am totally in love with someone as the same gender as me. It's a different, totally random stranger everytime. What does this mean?

That's a difficult ask you got here ! Dreams can mean so much things... typically they help you process things you worry about, so it might as well mean that you try to accept your attraction to one gender or that you're worried about really being straight ! Inconscious is probably too complicated for you or me to truely understand, however, you can learn more on yourself by your conscious thoughts : Do the way you remember your dreams seems like something you would like in your future ? is it just weird to you ? If you can't figure out, i would just advice taking it easy on yourself, it's okay to not know, and it's okay to change later too