Fiancé’s Daughter

So last night we had my fiancé’s daughter overnight, she is 6 months old. It’s not the first time we have had her overnight, and I’ve been around her since her birth. The custody is still up in limbo due to CPS involvement on the baby’s mother.

My fiancé had to take the baby home before he left for work, which is also normal. For some reason today while I was sitting with her, while she was in the car seat, my fiancé was finishing getting ready for work, and I just burst into tears as I was holding her hand and she was cooing at me. I could not stop crying, and I just kept giving her kisses and saying goodbye. My fiancé panicked, since he didn’t know what was wrong, but I just told her goodbye the best I could. He gave me a kiss and left, and I continued to cry for a good twenty minutes after they were gone. My heart is aching, and this reaction shocks me. Usually I’m collected and calm, but for some reason I couldn’t help but cry.

Any advice on how to handle your step-child leaving without having this strong of a reaction?

My fiancé and I are also TTC, and I’m late on my period, so I am taking a test today, so idk if my emotions are just out of wack...