I hate this animation AAAAAAA
It's so hard to draw any dance or anything else, at least to me because I haven't done any animations for like almost an year
It doesent matter how good it is. You worked hard on it and yet he still mocked it. A truly good partner would give thier full support on the drawing and maybe give some tips if they have enough skill to do so. If he does this often then i suggest talking to him about it. But its your relationship so do what you want