Andre,
There is no need to be embarrassed, you’re a good person and looking to love purely. That is so beautiful!
It sounds like perhaps you’ve stopped self-nurturing. When we get swept into romance, this is normal. Our partner is around and we are so excited and alert, so comforted, that we feel full. This is fine and normal, but if you stop spending time caring for yourself as well, when they leave it feels like a loss. Get back on the cushion, go for walks alone in nature, take a bath alone with bubbles and candles. You are beautiful and sacred, and even though a partner helps you feel that, you have to keep working at your own recovery. Nurture, nurture, nurture!
With warmth,
Matt