Jun 24, 2020
Consider: after the events of Squirrelflight's Hope, Squirrelflight more or less adopts Tree. It's not official or anything but she looks at him and mentally goes "that's my son"
OH MY GOD YES especially after how she sees how Moonlight treats him she gets kind of? Protective of him? She doesn't know why but she just feels that he needs some motherly love and she has more than enough to give. Tree is Squirrelflight's son and she should have adopted Leaf, Moon, and Squirrel