Hi Davide, It is inevitable that you will find a void when you do things that are out of your routine but have been special to you and your W in the past. Chalk out a plan for the rest of your vaca, just simple things that you can do to keep yourself occupied. The less time you have for yourself the better it is, just surround yourself with your family who are there for you unconditionally. Is there anything you have wanted to do for your parents or family and havent had a chance before? May be this is the right time.
For me, my small children leave almost no time for myself so although GAL is limited I have no haunting thoughts while I am with them but anything I do while I am on my own and remember the past times it is always with a pang of pain. Like all other feelings experience the pain too, this is true grief before you can let her really go.
And the way you handled saying bye to her before your trip was super cool, just know while you are in turmoil here she is in no la-la land either and your DBing is getting her really confused.