Teenage suicide attempts are not the exclusive domain of sexual attraction. I'm not unfamiliar with suicide, it seems to be family tradition in my past lineage and I've had to cope with teenage friends of my kids who have jumped, poisoned and overdosed to suicide and succeeded, none of them displayed visceral malcontent.
I don't know what the real suicide rate is amongst gay people, but that's because the ABS doesn't collect such data. Any data there is out there anectodal.
I'm sympathise for the shock and enduring trauma you have gone through, if that is the case.