Or could it be this one?
http://www.quiltingboard.com/t-64895-1.htm Which has a pattern on page three.
Or was it an actual bargello?
http://www.quiltingboard.com/t-43606-1.htm
Your first post said log cabin your second said lots of blocks formed into a heart shape. lol first is a log cabin heart. second is a bargello heart ie lots of little blocks to form a heart.