[@FallenTrinity]
Hm
Well I won't go too far into timing specifically because belle is the other half and the breaking up was hatched between us 
So I will go semi vague and say it would be after they broke up

Feoras would be more likely to hate in the moment. Basically fighting for the sake of protecting his land.....he really is confused as to why winter hates him. 

Again I would like belle to be involved to figure out how long.

Hope I helped a little bit at least.

If you have questions about salamanders I can help there as well :3