Not necessarily. What you don't know, you can't miss it. So in the Island it was obvious she was we women (Kasia) but now she has more options. The fact she chose Steve reflect that option, which doesn't mean she is not attracted to women too.It world ha about time!
She lived for 3000+ years in an all woman society, it us just natural her romantic and carnal interest would be for women and not men.
What really puzzles me is how can't writers and editors see this and show it in the series��
Note that i don't mind author exploring this part of her sexuality but as a flashback only.