The 26-year-old rapper gave his ex-fiancée his blessing on her engagement to Kardashian but expressed concern for their 3-year-old son, King Cairo, amid fan reaction to the news Tuesday.
"Everyone deserves 2 be happy. What some1 does for their happiness is not my concern, as long as it's not interfering wit my happiness," Tyga tweeted. "It makes me happy to see the mother of my son happy."
"My only concern in this situation is my son," he revealed. "I want him in happy environments. He's innocent in this. & I want him to feel as much love as possible. Only an evil heart would direct negativity at a child & make fun of him for being in a situation that is out of his control."
"When u been blessed how I've been, & create some1 u love unconditional, u'll understand how I feel," the star explained. Ull want to protect that blessing. Cherish yo own blessings and stop hating mine."
Tyga and Blac Chyna were together from 2011 to 2014 and had King Cairo in 2012. The rapper is now dating Kardashian's half-sister, Kylie Jenner, and many fans mocked the complicated familial relationship.
"After Blac Chyna engagement to Rob Kardashian. Tyga is now the uncle to his own child," one social media user wrote.
"So chyna gunna marry Rob. Tyga dating Kylie. King Cairos mom and dad double as his aunt and uncle ...king Cairo is hamlet," another said.
Blac Chyna and Kardashian sparked engagement rumors by posting a photo with Blac Chyna's enormous diamond ring and the caption "YES !...!...!" and later confirmed the news on social media. Kardashian's family has yet to comment.