The self-expansion model of love developed out of a confluence of rese
arch on attraction and arousal, Eastern psychology, motivation theory,
and the social psychology of personal relationships. The model treats
love (the desire for a relationship with a particular other) as arisi
ng from a desire to expand the self by including that other in the sel
f, as well as by associating expansion with that particular other. Fir
st, the model is described, including its function as a source of heur
istically important metaphors for common human experiences of love and
its unique focus in relation to other approaches to love. The remaind
er of the article examines its application, including supporting resea
rch, to predictors of falling in love, motivations for unrequited love
, consequences of falling in love,love as including each other in each
other's self, and how love changes (and how it can be maintained) in
long-term relationships. The conclusion examines current trends in whi
ch the model serves as both a very general integration of useful persp
ectives and as a set of precise mini-theories.