What do you do ?

Is it bad that when I’m out and about with my boyfriend and kids, I’m scared I’ll see my kids dad? Like I’ll literally get a panic attack while driving if i see a car that looks like his 😭😭 my bd was really verbally abusive & physical.... no one knows about this :( I’ve been separated from bd for couple years now but he still try’s to ruin my relationships because he thinks i still love him..... when he has a whole other woman & child