Angel (season 1)
At the end of the third season of "Buffy", the 242-year-old, re-ensouled vampire Angel left Sunnydale to give teenage Slayer Buffy Summers the chance to live a normal life. Angel is now living in the big city of Los Angeles. With Buffy gone Angel is now completely cut off from society, every day getting closer and closer to giving in to his vampiric hunger. It's not until he befriends the half demon and fellow Irishman Doyle, who is sent visions of people in trouble by The Powers That Be, and fellow Sunnydale resident Cordelia Chase, who grounds Angel's life in the humanity around him, that he truly begins to take charge of his life and seek atonement for his past sins. He sets up his own detective agency, Angel Investigations and begins to "help the helpless".
Angel (Buffy the Vampire Slayer episode)
In their Hellmouth lair, Collin consoles the Master for his loss of Darla at Angel's hands. Spying Angel across the crowded room at the Bronze, Buffy goes to thank him — and to tell him goodbye. Their banter trails to silence and they deeply kiss one last time. Buffy doesn't notice that the cross she's wearing — the one Angel gave her weeks ago at their first meeting — was scorching his chest.