trouble getting an objest to play once while moving in a tween

So i'm doing a video where a woman slides across the dancefloor. I've made her into an object that i can tween to make her slide across the screen with a classic tween, Inside the object i've set the first two frames to repeat for 8 frames(the length of the tween which makes her dress move back and fourth as she is moving.) then followed by several other frames of her as her dress falls back into place. 

The problem comes as the objects inner timeline restarts at the end of the tween. Do I have to break her up into 2 tweens? Is there something I'm doing wrong? My goal is for the first two frames to repeat while she glides across the screen, then when she stops her dress to fall back into regular place over several frames.