Steins;Gate - episode 22 - 30 Aug, 2011

Kurisu reveals to Okabe that she recalls her stabbing from dreams, as well as Okabe's various attempts at saving Mayuri. When Kurisu tells Okabe that he should save Mayuri over her, he cannot accept it and runs back to the lab. As Okabe attempts to time leap again, Kurisu stops him, worried that seeing Mayuri die over and over will destroy him. After giving in and choosing to save Mayuri, Okabe tells Kurisu he loves her, to which she responds by kissing him. The next day, Kurisu prepares to return to America, while Okabe and the others delete their data from the SERN network. Just after erasing the data, Kurisu returns to the lab to tell him that she loves him, but is cut off as Okabe shifts back to the Beta world line. After getting rid of the Phone Microwave, Okabe receives a call from an alternate Suzuha, telling him he needs to prevent World War III. (Source: Wikipedia)