Jealousy

Okay so I recently left a very emotionally abusive and overall draining relationship where I struggled constantly with my ex eyeing at other girls. Well I’m now entering a relationship with my best friend of the last 5-6 years and want to make sure these old wounds don’t come back to bite me. Well, I noticed him eyeing other girls and normally when we were friends I didn’t mind but now that we’re dating it’s different.

What a healthy way to approach the subject or how to change my reaction?? I don’t want to repeat tragedies and want to make sure I don’t let my jealousy get the best of me.

What’re somethings that might’ve worked for you??