Could you help me to understand trans relationships? I just don't.
What is it you don't understand?
I don't understand how could it work between two transgenders rather than two different genders
I think it's more important to just be happy for those people in such relationships and not worry about them.
Even loving ones own gender is wrong!
That way of thinking is considered homophobic and/or transphobic. You should allow people to live their lives how they want, because it is not harming anyone.