Can you identify this houseplant? I have had it for many years and have never seen it in any stores again nor in the plant files on your site.
Your plant is called a Hoya Kerrii. Because of its heart shaped leaves it has the nicknames: Sweetheart Hoya, Valentines Hoya, and Wax Hearts. You can read more about Hoya Plants in the Popular HousePlant section of the website.