Based on the original from this post, which is about how gnc women can still be women and don't have to id as nonbinary just bc they are gnc. I posted this in a reblog to that post, but felt it deserves its own post as well.
To be clear, I get why you may not want to call yourself bisexual even if it technically fits. I'm bisexual, too, but I've felt like that plenty of times in the past several years. Using only other terms for your sexuality is fine as well, or you can call yourself bi and other terms (e.g. bi and pansexual).