Infatuation means having intense feelings of attraction or obsession towards someone or something, often without knowing them well or for a short period of time. Full definition
Like Gatsby, we know the feeling of infatuation with something forbidden to us. (relevantmagazine.com)
But don't mistake infatuation for love that has to last a lifetime (in this case the lifetime of the human race). (dotearth.blogs.nytimes.com)
The initial infatuation stage of a love relationship — the «falling in love» — is a wonderful and important experience for most adults. (counselingatl.com)