This opponent hates my style. Is my style disgusting?

No idea what he meant. Dont worry about it. Suggest John Bartholomew's You Tube series on chess Fundamentals. The first video is on undefended pieces.
Don't sweat it this is supposed to be something you enjoy doing. You're doing better than more than half of us.

Hating on people for their "style" is so trivial. In chess no one will care if someone says "yeah I lost but my opponent played lame." Also I don't even really see how the way you played would be upsetting, just seemed like typical development to me. Anyways don't fret if someone hates on the way you play just enjoy the game and try your best.