Hi Sharon,
Wow, that sounds horrible! I'm sorry that's been your experience. I haven't heard of that happening before. Maybe others will help us out with their ideas.
Have you considered freezing the steak and marinade separately and then combining them at some point during the thaw. It adds a couple of little steps--like re-whisking the marinade--but it sure beats losing a whole steak. Yikes!

Kati