I was confused about the turn this movie took and it still makes me confused now. Didnt need to be so long and the ending (spoiler alert) was unnecessary, why did it end with the sound of him killing his lover and him sat on a bed? It left me baffled by what I just spent 2:30hrs watching like the ending had created an odd turn that didnt really push the story any further.
Props to Matt Damon he was a very good actor and still is