I'm struggling a bunch with feelings of jealousy for someone who I'm not even dating (but have a crush on). When I know they are going out without me, I get a lump in my throat because I'm jealous I'm not with them. I know this is ridiculous, and is what leads me to be too clingy. So I would like to work on this.

I'm wondering if anybody has come up with a solution for this. And if DBT therapy can help in this aspect of life?