Sebaceous Cyst on him. Bartholin’s cyst on me.

In a previous question it was suggested that my bf had a Sebaceous cyst & after looking at different pics, I do believe that's what he had on his lower shaft. I was diagnosed with genital herpes & a few days later I found a pea sized lump downstairs that popped when i lightly squeezed it, it has since disappeared. I saw another explain the same symptoms & was told Bartholin’s cyst. I googled & it has to be what i had. I also had a cyst rear my rectum which popped & went away. AND, an abscess on my arm that has healed since given rx for bactrim. Could my bf's cyst been contagious? How would it be possible for him to have a cyst and I all of a sudden get cysts for the first time, in areas his cyst had touched. (If your wondering how my arm touched it dm me I guess).

Please help