Leverkusen was doing so bad that I can't trust it anymore, hope they won't waste some points vs Schalke tomorrow... Same for Dortmund, especially vs Frankfurt I am a bit sceptic.
Overall I think Leverkusen +/- Dortmund odds doesn't worth the risk. Bielefeld odds are quite good if it wins but Mainz is better. Hope at the end you stay positive because I expect surprises this weekend.