Originally Posted by EdaLee
The author and Larian wanted it that way, it is ok for me.
Not everyone needs to try mono, including every character in the game.
I think Cowoline is right, Halsin is weird, but not because he's just poly.

This is typical. You haven't answered a single question. Common phrases instead of a clear answer. This is what the author wanted, romance was added at the request of the players, and many wanted to see It monogamous. How to measure whose desire is greater and more significant ? There is no one reason why Halsin cannot be monogamous. That don't affect the plot in any way.
There have already been precedents when heterosexual characters were made bisexual after the release. How to Jaal (ME Andromeda)
And these changes did not affect my game If someone needed him to be bi I don't care.
So why do you object to a monogamous scenario?