I have a vine that has come back up in my butterfly garden for the 3rd year. I have not sprayed because I did not want to destroy the garden. the leaves are heart shaped with saw toothed edges. The vine bears small, non-descript flowers in early spring which the beas absolutely love (and for some reason so do small flies). The fruit is a small smooth berry that turns from green to a light hot pink. It grows like lightening and has tendrils which are very hard. I have to slowly remove from the desk (in other words, I can't pull on it because it will tear down the trellis material.) It dies back every winter.

I can't find my camera so can't take a picture.

Do you have any idea what this could possible be? I have done numerous Google searches and just can't find anything that comes close to the description above.