Here I am simplifying matters and considering the traditional nuclear family, comprising one woman and one man, to create a family in prospects. If you wish to specify that you prefer single sex relationships please feel free to say so. I am speaking from my own viewpoint here, which is not the only valid style of relationship.
When I met my wife she was 5'7 1/2" tall and I was 5'6". She was 17 and I was 15. I reach 5'10" by the time we married. Almost 62 years from the time we met she is 5'3" and I am 5'8". Life is funny. One other comment. God recognizes one man and one women, nothing else.
My current wife is 5'4 and I am 6'0 I dated one lady that was 6'3", so she was 3 inches taller than me. So, in my opinion height shouldn't matter, it should matter if the 2 people are compatible.