Monolationship 

A one sided relationship between 2 ppl

I was tired of putting all the effort into my relationship it just became a monolationship.

Monolationship by Madhatter37 October 20, 2022

manlationship 

The intense friendship between two guys that may even be borderline homosexual. This can be synonymous with heterolifemate.

Bill and Ted have been in a manlationship for a long time now. Their girlfriends are starting to get jealous.

manlationship by Colto22 May 18, 2009