Might this be the cause of my dog's obesity?

She's in her own home and no other dogs like her. She's depressed. She's tries to be sociable but gets attacked. Find.her other dogs to play with. Take her for rides with you. Take her to puppy parks. Take her to friends houses. Take her to pet stores. Take her to beaches. The other 3 have formed a pack.and that is dangerous. Spend more quality u and her.time together or find her new home for u and her or her. I bet if u took her out and spent more one on one time together u both.would like it.