Regretful, because the narrator says “sorry i could not travel both” and shows that they are regretful they can not do both
Literary nonfiction uses many fiction-writing teachniques
A clause has a subject and a verb, so
1) "parade" "began"
2) "she" "loves"
3) "she" "went"
4)
5) "today" "rained"
so by this logic 4 wouldn't be a clause because it has no identifiable subject or verb
Are you asking about our confession or is this a passage ?
(not meaning to take points, i'm sorry, just not sure ?)