With your kids' college acceptances rolling in, have you thought vuurwerk geluid hondabout what will happen to your dog Sammy when Rachel goes to college in another state or somewhere far enough that she can't frequently visit? After all, Sammy and Rachel practically grew up together, and you know Sammy will be saddened and confused at Rachel's long lapses in appearance. The good news is there are ways to make the transition easier for all concerned. It just requires some thought and preparation.
Like humans, dogs can experience big separation anxiety problems. We've all heard the stories of dogs tearing up expensive furniture and decorating the carpets with a wide variety of pee stains while the owners are away-this is just one common manifestation of separation anxiety, among many. You probably already know how Sammy deals with separation as family members come and go on a daily basis (and hopefully he's calm in general about it and not tearing up shoes anymore!) but you don't know exactly how he'll react to Rachel's long-term absence. All you know is that you want to make it as easy on him and the rest of the family as possible!
The best thing you can do in this situation is to slowly prepare Sammy for life with less Rachel. If he spends most of his time with her, sleeps with her, or does activities exclusively with her, you'll need to start shifting these activities to the people who will remain in the household. Try to start doing this as soon as possible. The longer time you have, the slower you can make the transition, and that will make it much easier for Sammy to move forward.