Part of the fun of any speech act Is knowing when to play along or not With the expectations of The other party. Fun, in this context (As in so many others), is a code word For reserving the right to control:
What we exchange when we agree to hang out Are emotional nerf coupons Good for the light on the prairie Or if you prefer a validation stamp On your "I'm only co-opted ironically" button.
Sincerity is a desirable quality To find in the person who vows love for you. Someone sincere with everyone they meet Is an admirable case indeed, especially If they aren't being merely polite. Don't bother to search for an antonym; It isn't irony, in any case.
If only we could free the preoccupied as easily As someone whose coat is caught on a thorn.