I ALWAYS ran into that problem!!!
To help the ones you've already done, pull the loops CRAZY-HARD-FAR apart; then twist each one around at least 180 degrees. Tracking? If it will stay like that (not pretty, I know) let it sit for a few hours, or over night. Then you can untwist the loops and try shaping it how you want... I'd definitely starch or spray it if it looks like it'll keep the shape long enough for it to dry.
Are you wrapping it to the clip? Using thread or wire? For thread, you might could dampen the thread some and then try tugging the loops apart and shaping your bow. The problem (at least for me) was that I was wrapping my ribbon too tight, thinking it would make it more secure. SO- the last ones I made, I didn't wrap SO tightly initially. Then I pulled my loops apart (making sure they were apart at the base- closest to the clip); not really shaping it yet. THEN I re-wrapped the whole thing TIGHTLY, making sure to keep the loops apart. Then shaped the bow. If it looked good, I'd hot glue the FIRE out of the back of the clip, before I finished lining it. I only made these on french clips, and only for dd; so if the back of the clip was a little lumpy I let it go... it's hard to see anyway with the tension bar in place.
SO... there's my novel on trying to get a decent loopy bow.
Sorry it's so long, but I hope it helped at least a little!