One who is deliberately having unprotected anal sex in order to be infected with HIV, particularly if his lover has it. This is done to show true love and devotion in the gay union or to commiserate (share the pain of HIV) with his lover.
Bob was infected with HIV before he met Ray. Ray was so in love with Bob that he wanted to experience everything with his lover, including HIV.
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.