propinquity

The use of the word "propinquity" is aimed toward someone unknown. It seems that the speaker might possibly be attracted to them.

As defined by the Oxford English Dictionary:

noun
1 the state of being close to someone or something; proximity: //he kept his distance as though afraid propinquity might lead him into temptation// > ==Origin: == late Middle English : from Old French //propinquité//, from Latin //propinquitas//, from //propinquus// 'near', from //prope// 'near to' > >
 * 2 //technical// close kinship.