Gay brothers relationship

It was not only I was 15 that I started seeing my brother in a different light. Only then I realized that I was not much into girls as other boys of my age. However, it seemed like I was finding some of the boys sexy and appealing and with time I knew that I was gay.
As the title says, how did those of you in a relationship meet your partner? How long have yous been together, what was your experience of dating like beforehand (if applicable), etc? Mainly asking out of general interest, but also for any potential tips on meeting guys I might learn from y'all.