His Dating Diary: 9 Signs Your Guy Is Cheating Are you suspicious that your significant other is playing the field? Here, one man shares 9 relationship red flags that may signal some extracurricular irregularities. <a href="http://lifestyle.msn.com/relationships/articlemcmatch.aspx?cp-documentid=16880759>1=32023" target="_blank">http://lifestyle.msn.com/relationships/articlemcmatch.aspx?cp-documentid=16880759>1=32023</a>