serial dater

people who've been in many short term relationships. these people are almost never single and constantly jumping from relationship to relationship.

example 1
person 1: I have a crush on *name*
person 2: good luck, she's a serial dater

example 2
person 1: Is *name 1* still dating *name 2*?
person 2: That was 2 relationships ago, he's with *name 3* now.
person 1: I saw him with *name 2* last month!
person 2: serial daters, man..