Alec Lightwood is a Shadowhunter in Cassandra Clare's series The Mortal Instruments.
His best friend is Jace Herondale/Morgenstern/Lightwood (his last name depends on the book... XP) who for most of the series Alec claimed to be in love with but in the third book FINALLY admitted he loved Magnus Bane.
He and Magnus are now in a relationship cause they are both the coolest book characters EVER!!!
He is also very protective of his younger sister Isabelle.
Alec Lightwood came out by kissing Magnus in front of the entire Clave and hundreds of Downworlders. Talk about love!