i think it's because the gay circle is very small in hk... and majority of the ppl are focus on "sex" and not the real love... for new love, first time having sex with new guy, it's excited, becos you it's fresh, new, suprise, and enjoyable, but once you are used to it or played couple times, you'll get bored and wanna find a new partner... that's y gay love is short period yet very excited!