I don't think you show weakness if you gave him/them a phone call tonight. You are still in the transitionary phase of life without your second family and they are probably going through the same thing. From all your postings, they both care for you and you them.
Just chat on sweet nothings if that will bring you some comfort. Sounds like they are getting their lives in order in Vegas and I'm sure the comfort of your voice will bring them happiness. I'm sure they want to hear about what went on with your life for the past week as you are interested in what is happening with their lives down in Vegas with the big move and all. (Wish him well on his job interview! and that you miss him/them) Please take care of yourself ok?