A Gilmore Valentine

Today I was thinking about Valentine's Day and I was trying to figure out if they ever really mention much about Valentine's Day on Gilmore Girls. And the only episode I could think of that they mention it on was A Vineyard Valentine(I think that is what it was called) on Season 6 when Luke, Lorelai, Rory and Logan all go to Martha's Vineyard. I think this is the only episode Valentine's Day is really mentioned but if anyone else knows of any other episode please tell me.