For those unaware, yesterday (Oct. 3) was National Boyfriend Day. The unofficial holiday was celebrated by thousands online, including Ty Dolla $ign and Lauren Jauregui, the former Fifth Harmony pop star, who he's been dating for quite some time.

Singer Lauren Jauregui shouted out the fellow "New Level" singer on Twitter, calling him an "amazingly loving, talented, thoughtful, love bug of a man." Ty proved as much when he retweeted her post and wrote "I love you with my whole soul ! So grateful to be able to call u mine my heart."

"Yours 4 eternity," he added, followed by a few "100" emojis.

The singers have hit the studio together in the past. Jauregui is the female vocalist on their collaborative effort "In Your Phone" off 2017's Beach House 3. Ty dropped the deluxe version of the album in May, which features additional tracks with Quavo, Gucci Mane and 21 Savage.

Ty Dolla first confirmed his relationship with Lauren in an interview with The Breakfast Club in November 2017. The crooner was there with 24Hrs, who says he and Ty have both a mixtape and album on the way.

In related news, Ty Dolla $ign recently hit the stage with Kanye West. While the 'Ye singer was performing "Ghost Town" alongside G.O.O.D. Music signees Kid Cudi and 070 Shake, Ty can be seen showing off his guitar skills in the background.

View Ty and Lauren's posts below.

@laurenjauregui via Instagram

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