Does affection lose potency when it is expressed too frequently?

Do you prefer it sweet and distilled at infrequent intervals (gems are valuable because they are rare), or is a little bit every day more to your liking (water: it’s everywhere, but without it we quickly wither and die)?

Do you feel the same about emotional/verbal affection as you do about physical affection?

I’ve been thinking a lot about my relationships, and if I need to adjust the tap from one person to the next. :) I’m curious to find out the reasons behind why some would prefer one over the other, to hopefully see things from the POV of the people I might be presently affectionate towards. :)