Sad Lolly our Pomeranian

My aunt and I share Lolly and for the past couple months my aunt let people stay with her and Lolly is now depressed since they left even when she came to stay with me which she's usually excited about but she just wanted to go home with her first mom , my auntie. I think Lolly is afraid my aunt Elizabeth will leave her like my aunt's friends had to do. Lolly is with my Aunt most of the time so officially her home is with my aunt as I can't walk to good.