Hello Supercool: I see this is your first post here on PC. So... welcome to PsychCentral.
One additional forum, here on PC, that may be of interest to you would be the relationships forum. Here's a link:
https://forums.psychcentral.com/rela...communication/
I don't think there is a lot I can offer with regard to your concern. The one thing I can say is that, at least from my perspective, in the end only you can decide whether or not you are bisexual. Mental health professionals may be of some help in sorting out your feelings. And seeing a mental health therapist, who has experience working with people who have sexual orientation issues, may be most helpful. But they can't make the determination for you.
Here are links to 2 articles, from PsychCentral's archives, that discuss how to manage suicidal thoughts:
How to Survive Suicidal Thoughts
Change Suicidal Thoughts by Asking "Says Who?"
I hope you find PC to be of benefit.