My sis everyday finds clothes her son has outgrew to give to me for my son. She's always thinking of…

My sis everyday finds clothes her son has outgrew to give to me for my son. She's always thinking of my little boy. She's so thoughtful :) I love her to pieces. I'm definitely gonna feel lost when my sis and her kids move back away from us. After being with us a year and a half we've gotten use to them being here with us everyday. It sucks. My son isn't gonna have anybody to play with him either and gonna feel lost too without the kids. He's grown really close to my sis and his cousins. I feel so bad :(