By Coleen Nolan Dear ColeenI’ve been married for six years and my husband and I have no children. However, I’m worried that he is flirting and whether there’s anything more to it than just banter with colleagues and friends. The reason for saying this is that he left his phone at home one day and I know his passcode (his birth date!), so I looked through his messages and photos. There were really flirty texts on there to other women, saying things like “Hi, beautiful” and “Can’t wait to get together later” although there’s nothing explicit or any details that show he’s actually cheating. In ad…