I’m marrying my favorite person in the world @samrobertbirdA post shared by Kailah (@kailah_casillas) on Bird also shared his excitement about the engagement on Instagram. «All my eggs in one basket,» he captioned a series of photos that also showcased Casillas' ring.All my eggs in one basket.A post shared by SAM BIRD (@samrobertbird) on The newly engaged pair has been dating since January of this year.