Sometimes mildness can be mistaken for effeminacy. Some priests are just mild, and sort of "beta" in their personalities. Non-confrontational. You'll find such types in pretty much all traditionalist groups.
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That being said, there have certainly been ɧoɱosɛҳųαƖs within traditional clergy. This is a matter of public, established fact. Urrigoity and his cadre are as good (though hardly the only) example as any. So it's hardly far from impossible. As one anon said, some more cultivated types enjoy the aesthetics of the Latin Mass.
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Anyways, as to your specific situation, don't go around spreading gossip. Do you have sufficient reason to believe the priest is committing sodomy? That he has engaged in some impropriety with men of the chapel? That he is grooming? Don't let your "gαydar," however well developed you might think it is, cause scandal. Keep it to yourself unless you have some evidence. Distance yourself emotionally while being observant. Don't let your suspicion that he's a ɧoɱosɛҳųαƖ inform the evidence. Take the evidence and ask dispassionately, does this evidence suggest, beyond the required presumption of charity, that something sinful or otherwise inappropriate is occurring or is about to occur?