La Primavera-- two words

[Puzzle88Piecer]

Sue is disturbed by two words in this dance (La Primavera).

1: about line 90, there is what might be a 'q' with a superscript 'o', which we have rendered "questo", which would be a common abbreviation, but not very meaningful. But if the 'q' is really a '3', then it could mean "tercero" ("third"), or even more likely in context, "trio" (i.e. the dancers are doing things together as a threesome).

2: about line 144, there is a word "intendo". It seems like a completely superfluous word, which is a very suspicious circumstance for a word that is not a mere pronoun. I can't shake the feeling that we missed something, but don't yet know what.