Getting vaccinated against certain sociotypes...
Have you ever felt like you have some antibodies against certain types?
Like when you have had some experiences (long term most likely) with certain type (s) that you start feeling vaccinated against their type program (obviously not your dual).
It means like you met new ppl of that type but soon you start noticing those patterns that you dislike so you break out relations because you already had some antibodies (it happens naturally).
Read this in case you don't understand the analogy:
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.