Dear Prudence,
I spend most of my time on social media stalking my boyfriend’s exes. He had long relationships with two of them and I’m convinced one is still in love with him from the texts she sends him. I don’t know how to stop being so jealous of their past with him and move on. I know he loves me but every time something upsets me, I’m suddenly looking at old pictures of him and his ex. How can I cope and let the past be the past?