Heather Rae El Moussa Denies Favoring Son Over Stepkids

Heather Rae El Moussa isn't letting any hate overshadow her day of love. 

The Selling Sunset alum took the high road after her Valentine's Day Instagram post received criticism for not including a photo of her husband Tarek El Moussa's 13-year-old daughter, Taylor.

"We close our ears to the pettiness," Heather wrote in a Feb. 15 Instagram Story. "We strive for positivity only."

Insisting her stepdaughter wasn't offended, the 36-year-old added, "My girl knows she's my #1 gal."

Beneath the clap back, Heather—who shares Tristan, 12 months, with Tarek and is also stepm…