So just under a month ago I was jumping my horse fine, and he was refusing a bit but as he's new to jumping I accepted it was normal and carried on jumping and we left it on a good note. 2 days later he down right refused to jump at all (and my horse is incredibly stubborn), I didn't have enough time that night to get him over it so I left it. The next time I rode him I went back to the basics and done some trotting poles, but he wasn't having any of that either. I couldn't get him over a single pole and in the end I had to get off and it took 3 of us to get him to step over it, which in the end he did but it took forever. We've been going like this for a couple of weeks now and he's steadily improving and it's taking less time to get over each pole. But last night he just saw a pole and he was rearing. It's starting to scare me a little and is knocking my confidence. I can't work out if he's scared of them or is being incredibly naughty and I don't know what to do. Any advice?
P.s he's completely sound and back/saddle has all been checked. He is fine in every other aspect except ground poles and jumping.