Mild jealousy is okay, according to YourTango.com, but there are signs that you're just a jealous mess. Here they are:

1) His phone habits upset you - Meaning when he doesn't answer the phone in your presence, you automatically assume it's another woman

2) His social media habits scare you - A new friend on Facebook means an immediate investigation

3) You stalk him - You drive by his home, his job, or places you know him to be to find incriminating evidence.

4) You're mistrustful of new people. If he introduces you to someone new, you watch them close for any sign of attraction.

5) You snoop. This is obvious one -- but when there's opportunity, you check his phone and/or email for signs he's cheating.