In this case, Venus does
interfere, because she is in fall; a benefic in fall is not very helpful, and can even bring problems.
Venus rules the 5th house in this chart...do you have children? Or are you pregnant or is there a chance of pregnancy? It seems that something along these grounds may prevent you from going. Your holiday (9th house) looks like it will be spent at home, since Saturn, 9th ruler, is in the 4th house.