Very dear, although its seems big and difficult decision to make right now but if you sit outside the picture and see whole story by sitting outside, keeping emotions out of picture, I am sure you will make better decision. Nobody can make decision except yourself but I can give you few options which you can keep in mind and make decision.
1. Your kids are adults now starting or started their own life professionally and personally. You have your partner for your old age to talk and care. Even you have kids but your actual partner is your husband.
2. No mater what human makes future plans, if nature makes any other decision, our plans just remain as plans without any outcome. At any point if we can’t any decision, it’s important to call universe help and wait for nature decision. Remove all thoughts, keep yourself out of any decision , make faithful pray in quiet place, ask for answer. Answer will come in your mind.
3. Keep in mind, getting too much stress about future is spoiling your present and we don’t know what our future holds so please make your present happy and your happy relaxed vibrations will definitely bring relaxed future. Love u.