Will I ever get over this?

So.. it’s strange and I’ve wondered if this has happened to anyone else? I’ve dated several people in the past. Probably 3-4 of them were long term (over a year). I have no feelings for any of them, and I’m kinda “meh” about it except one of them. And I have no idea why I have this attachment and I didn’t have this with any of the others. I do not believe he’s the only man I’ve ever loved. I’m quite sure I loved another, maybe two. As well. But I do not feel this type of attachment to anyone else. It’s been a couple years and I still get anxious or this gut wrenching feeling thinking about him with someone else. Will it always be this way?