Cool, calm and collected!

Hailey Baldwin ventured out to grab coffee in West Hollywood on Monday, and the model seemed so serene that you would never have known that she had an uncomfortable encounter with boyfriend Justin Bieber's ex Selena Gomez the night before!

Apparently, Hails and her dad Stephen were partying at The Nice Guy on Sunday night when the "Come & Get It" songstress arrived. Although the blonde beauty reportedly could have cared less, poor Miss Gomez had a mini-meltdown.

"Selena was so freaked out when she saw Hailey at Nice Guy. She wasn’t expecting it at all and it really threw her for a loop. They run in the same circles, but Selena has never been a big fan of Hailey’s, mainly because she always suspected she had a crush on Justin. But Selena is a lady and she has been friendly with Hailey in the past so she knew she had to say ‘hello’ to her and her father. She was polite and greeted them both but then when she got to her table she was pretty shaken up. She couldn’t really eat. Her food just sat there while she texted on her phone," a source dished to Hollywood Life.

Hailey should be happy that Selena Gomez has a new man, because maybe she will finally give up her hold on The Biebs!