serial monogamist

an individual who dates only one person at a time (and is faithful to them at that time)
Tara is not a player but she is a serial monogamist.

Tom is never flippant with women; he claims to be only a serial monogamist.
by Vickidee April 10, 2011
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serial monogamist

A man or woman who as extremely short-term relationships because they seem to like to put others in pain or because their parents messed them up in childhood
See: 35% women
99.999% men
by Butterfly December 16, 2003
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