I’ve been with my husband for about 4 years. And something happened last week that keeps bothering me and I’m not sure if it’s considered cheating. He was texting his colleague more often and some of the messages are flirty. Nothing physical but the tone and frequency of the messages made me feel uncomfortable. I don’t want to overreact but I also don’t want to ignore boundaries that are important in a relationship. I can feel that he really enjoys texting with his workmate more than with me. Is this considered cheating? I’m 36 and he’s 39.