No an open jaw is when the origin of your first one way differs from the destination of the other.
In other words, dtw-tlv//tlv-dtw has no open jaws. If you now add dtw-lih to that award you now have one open jaw, because the origin of your first one way (dtw) differs from the destination of your second one way (lih). That is legal.
You cannot travel dtw-tlv//tlv-dtw//lih-dtw. It's not a valid open jaw, as there is a gap in airports en route on the second one way (between dtw and lih).
They charge lih-dtw as a separate award.