18 yrs in the lifestyle and im so bored i could scream, anyone else at this stage

ok i needed to say this somewhere no one knows me. f46 he 48, married 22 yrs, in the LS since 2008. midwest, two grown kids in college, dog, the whole adult thing. and i swear to god the last 4 parties have felt like going to costco on a saturday. same faces, same playlist, same hot tub, same "oh you guys look great" from a guy whos told me that since obama was president. i used to get butterflies in the parking lot. now i get a tension headache and i text my husband "ten more min then we leave" before we even walk in. the sex is still good when we get home, weirdly. like the LS is now foreplay for our own marriage which is maybe what it always was idk. but the actual lifestyle part, the swap part, the meeting new ppl part... i havent been ATTRACTED to a new face at a club in over a year. i fake it. he fakes it. we go home and laugh about it in the car and then have great sex. which sounds fine when i type it out but it also feels like... what are we doing here. the part that gets me is i dont want to quit. quitting feels like aging. quitting feels like admitting we became boring suburban ppl. but doing the same thing every month, getting the babysitter (jk, no babysitter at this point in life), driving 40 min, paying 80 bucks at the door, to feel nothing... thats also not it. we tried a new club in another city last month. same exact vibe. just different wallpaper. is this it. is this what 18 yrs of LS feels like and we just keep going thru the motions until we die or is there a way thru this that isnt "find a new kink" bc honestly im also too tired to learn a new kink at 46