I have no female best friend, no group of girl friends, no sisters, no other close female relatives who I actually know well enough to ask. I literally have no one. I don't have many friends at all to be honest, I have always struggled with relationships (yes I am getting help for it). Increased communication may indicate that your husband and his female coworker are more than just friends. Your husband's relationship with a female coworker starts including more and more texting and calling, and eventually they find ways to spend more and more in-person time together, too. In my work with divorcing women over the years.