Dislike of a particular dog
So the months of training and my dog has dramatically improved; he almost stopped lunging at other dogs even if they try to attack him. The small ones he doesn't care at all, not even a look at this little barking thing (although some of them even nip my dog). We can safely pass about 99% of dogs, but there is one particular dog, a spaniel and Rex totally hates him. There is no reason for him to hate that dog (neither the breed), but still. He is violently trying to attack the spaniel, barking his lungs off, saliva foaming.. pretty awful. I'm doing my best to avoid meeting that dog but he lives nearby and encounters are inevitable... Is there a chance him growing out of this or anything else I can try to train this out of him?