I accumulated phone numbers and social media accounts of my favourite SWs over the years and whenever they would quit working at whatever adult entertainment establishment I met in. I would either still have their phone number and/or have them on social media.
I like to keep their contact information as a way to remind me of the amazing memories I had with them or to possibly reach out and see how they’re doing.
As years go by, The blocking slowly occurs from my ATF’s. My phone number as well as my social media gets blocked by them. It honestly makes sad because I loved those women as people.
This is one of the reasons why I’ve been trying to make a shift from seeing SWs to dating because I never get blocked by women I took out on dates even when they found a partner after the fact.
Please learn the art of letting go and moving on in life.
And imho this is not just for the SP/escort world - even in your normal civilian life, I am sure you have to let go of friends/family/SO's over time. This is inevitable as people grow, evolve and make new friends/new connections and life goals change. While you are together with someone, do your best and make the most of your time together with them. When someone wants to leave despite your best efforts, nothing much you can do about it. Some may even depart before you and that is just a fact of life buddy. This is how life is structured. In fact, as you yourself have put it, the SP world teaches us very important life lessons about not depending on any one person for our emotional needs.
Some people learn this naturally because they grew up in a supportive family where they could learn by watching their elders/teachers/guides etc. Others like yourself (and many others) struggle with this concept of letting go - for example, I have an older friend who holds on to every letter he has received from high school, he is over 50, but he still gets very emotional about his high school/college friends/lovers. I have advised him to not indulge in such self-pity, but in vain. This is just not healthy imho.
Get psychological/counseling help like people have already recommended here. Depending on your upbringing/culture, you may want to try out spiritual help too. Human life is transient and you simply have to learn the art of letting go in a nice, responsible manner. Take care.