"vita in questa" means that the deceased lived in this comune while alive...
Here's what I see in the record, others will fill in the missing info
Act of Marriage
9 May 1903 at 10 AM at the Town Hall
Angelo Politi, single, 27 years old, carpenter, son of deceased Michele, who lived in this town, and of deceased Vincenza (can't read the surname completely) who lived in this town.
Santa Lanzafame, 19, worker, daughter of Antonio and of Giuseppa Costa.
Marriage date 9 May 1903
Groom Angelo Politi, single, aged 27, wood worker, born in PaternÃ² living in PaternÃ², son of the deceased Michele residing, when alive, in this town (residente in vita in questa [cittÃ ]) and of Vincenza Tomasello residing, when alive, in this town.
Bride Santa Lanzafame, single, 19, trader (industriosa) born in PaternÃ² living in PaternÃ², daughter of Antonio residing in PaternÃ² and of Giuseppa Costa residing in PaternÃ².