When a boy is tempted, does sperm drop in his underwear? My boyfriend kissed me once. Some chemistry moved between us. After a while he got irritated and went away from me. What does that mean?
When a boy is sexually aroused, his body begins to prepare for sex. One preparation is a production of a lubrication fluid, which drips from his penis. It is the same thing that happens to girls. When a girl is sexually aroused, fluid is produced in the vagina and drips from her vulva.
The male's fluid is not sperm, but it sometimes can contain some sperm.
I cannot tell you why your boyfriend left. You would have to ask him.