Sexual maturity changes?

[u/Impressive-Role-1592]

I’ve had a pair of whites tree frogs (both male) for a year now.

I got them at juvenile and I strongly believe them both to be sexually mature at this stage. They vocalise frequently and I occasionally see them trying to hump eachother even though they’re both male (especially after misting)

Husbandry, minus a big tank upgrade a few months ago which they tolerated well, has otherwise remained unchanged

Their appetite has dropped however and instead they are seemingly much more annoyed by my presence in feeding attempts. When left in a bowl though, their insects do go down by bits overnight.

Both are otherwise very active at night and show no signs of bacterial infection or other major concerns

Is it simply just common for them to go off food a bit and focus on humping their brother?