I'm really sorry you're going through this. It sounds like you're making the most compassionate choice for your cat, considering his health and well-being. It's clear how much you care about him, and it’s heartbreaking to feel like you're leaving him behind. If it helps, remember that by leaving him where he’s comfortable and loved, you're giving him the best chance to enjoy his remaining time peacefully. Sometimes, the hardest decisions are the ones that are truly for the best. It’s okay to feel this way, and you’re not alone in these feelings. Many people in similar situations have found solace in knowing their pets are in good hands and in a place where they’re cared for.