This article was written by Amy Schlinger and provided by our partners at Prevention.
If you're constantly worried that another woman will take off with your guy or that his late nights "at the office" mean he's up to no good, then your relationship has indeed entered rocky territory.
"People feel jealous because they're afraid, insecure, threatened, or scared to lose someone they love," says Jane Greer, Ph.D., a New York–based relationship expert and author of How Could You Do This to Me? Learning to Trust After Betrayal. A confident, well-adjusted person in a healthy partnership should rarely have a reason to get super jealous or suspicious. In short, if your relationship is a good one, you should be able to say, "I trust him"—and mean it.
Not sure if you're as secure as you should be? Here are five key signs that a relationship is a strong one. (Lose up to 25 pounds in 2 months—and look more radiant than ever—with the new Younger in 8 Weeks plan!)