A new report claims that Mendes is jealous of the relationship the two co-stars share Is Eva Mendes getting upset over her boyfriend Ryan Gosling spending so much time with his La La Land co-star Emma Stone as they promote the film? A new report in OK! Magazine seems to suggest that it's the case, with claims that Mendes, 42, is getting upset and worries about her 36-year-old's flirty and friendly relationship with his 28-year-old three-time romantic lead co-star.