Describe how Romeo's mood changes from the beginning to the end of Act 1. What or
who are his emotions mainly influenced by (in other words, what is Romeo constantly
thinking about in Act 1)?

I think his character does not change. The circumstances do, but he remains as intense and impulsive as he was at the beginning of the play. In Act 1, Romeo is lonely. He is deeply infatuated with a girl who essentially shuts him down. However hopeless it seems, though, he swears he will never love another.  

i don't know and i don't care .