So I was walking with my friends downtown, and I saw my ex, he looked at me but I didn't look at him. He was on the phone the whole time. And he started walking literally right next to me and my friends as if he was walking with us. So I slowed down and he slowed down too. He eventually was a little Infront of us but looked back when I walked pass some guy. Was that a coincidence lol? He looked at me twice, and I have a feeling he just wanted to see if those guys would talk to me because he is jealous and last time he saw me walking with my friends brother he looked at him dirty and threw his water bottle at our direction.