Is this lust, I’m I running away from responsibility when it comes to relationship or is it something else?

I mostly desire a girl, sometimes strongly sometimes lightly but, whenever I get closer to her and moving towards being in a relationship with her then I want it to end. Don’t get me wrong, I will do everything I can to make her happy and not feel uncomfortable in any way in the relationship but, I then just want her to go and so when the relationship ends, I feel some sense of relief. And when I see another girl I desire, the circle continues.

I’ve gotten my own share of heartbreaks though. But, all the relationship I’ve gotten into that didn’t break my heart, ended on the grounds of mutual understanding.

Anybody wanna share their thoughts about this?