In the Wyoming Sun: A Friends-to-Lovers Romance (Hot Spring Ranch #6)
Lois Autry

Heather Clark is a talented costume designer who lives alone with her pet cat. She’s stuck in the middle of her recently divorced parents while her little sister studies abroad in Europe. Running her online business by day and playing video games at night, most of her socialization occurs virtually, just the way she likes it.
When Colton discovers that his best friend in an online game is actually a woman named Heather, their entire dynamic changes. The person he once thought was just a cool guy to hang out with online is now a mysterious woman who he is dying to meet in person. But Heather must overcome her self-doubt and insecurities if they have any hope of exploring the chemistry that lies between them.