im thinking perhaps he just has a headache... no seriously alltho your fish might be gay i dont think thats whats happened here i think that they tend to mate at certain times of the year and also you should know that your fish might kill the female after mating with her better to keep her out of the tank untill he starts to make a bubble nest somewhere near the tank so he can see her ive got a page somewhere but i can remeber what ive done with it.