Your recent breakup of a longterm and highly involved relationship is probably playing a big role in your feelings I would think.

Your mind and emotions are so raw with awareness of how something cared so much for so long can be gone. You've found someone new that's helping you feel good and subconsciously maybe your fear of loss is driving these thoughts...as in saying if I'm with her she's not gone.

If that's the case time should help heal your anxieties. You need to allow yourself to grieve and breathe for an amount of time?

Just some thoughts to consider.

Good luck!

KD