That thing just happens sometimes. It doesn't mean anything at all, except that sometimes there is no chemistry. Either because of the people involved, or because of your mood. I've occasionally had one of those cardboard orgasms just because I was rushing to keep up. Il n'y a pas de quoi la.

Saying that you tried it to test to see if you still liked sex with guys makes it sound like mood was a factor.

I'd suggest testing to see if God will throw a highly compatible partner your way sometime in the next ten years and then trying the sex thing again after that.

Any experiments you do with randoms in the meantime shouldn't be taken too seriously.