SgtRock,
Your sexual orientation is your own business--many people on the site are hay, transgender, asexual, pansexual. In the end we're all just people trying to keep our heads above water. What your ex did stinks period. I have an ex who...well let's just say that when he got hit by a garbage truck it was poetic justice for all the garbage he caused for so many innocent people. I'm so sorry you were treated that way by someone you clearly cared a lot for.
You have a lot of things going on with you--I hope you make the time and effort to be kind to yourself. You deserve it.
Sending thoughts of peace and support your way