You can negotiate a solid scene, safe words, roles and consent, but at the end of the day no one is obligated to do anything. Its a hard pill to swallow as a randy guy whos just spent the last few hours looking forward to the revenge but there is no alternative.
Part of meeting up is respecting the wishes of the people your meeting with, if they choose not to play with you, thats their choice. All you can do is be happy you got to have an experience tickling someone and as Vanillaphant mentions, maybe put more of an emphasis on what you would like from play in the future 🙂