What is the interpretation of a dream that includes meeting a female friend and kissing her inappropriately, while feeling pleasure and attempting to seek refuge from Satan, and is ghusl required after waking up startled without confirming a wet dream? And is the prayer that followed permissible?

This is a dream from Satan, so do not ask about its meaning. Rather, seek refuge with Allah from the accursed Satan. If you find wetness upon waking, it is a wet dream (ihtilam) which necessitates ghusl (definition), due to the Prophet's (peace be upon him) saying: "Yes, if she sees water." And you must repeat the prayers you performed before ghusl. If you do not find wetness, then there is nothing upon you.