I am just gonna play devils advocate here for a minute. Please bear with me if you can.
I am pretty sure you said he is a depressive. It sounds clear that his coping mechanism is to shut down, block out the offending input. It upsets him. And now, because you insist he talk to you or experience this with you as it is happening, he feels attacked, probably, and records you, because you are likely a lovely person otherwise and he can't quite figure out how to handle this side of you. Being aware you are bi polar and having to feel the brunt of its ugly side is not his forte'. He may trigger you inadvertently, and I seriously doubt he intends to. If you say otherwise, that is another story.

He is a depressive. Not a therapist. Just because he has his own issues, doesn't mean he understands yours. You probably scare him a little.
You sound like you rage. He can't handle it, and needs you not to do that. So you cry, which is how you cope right now. Is that right?
Of course recording your outburst of energy is horrible & really not okay. Saying he wants you to see what your outbursts 'look like' is just his very misguided attempt to let you see what it looks like To Him. He thinks you don't realize. I know...wow.
Being supportive does not mean being someones punching back or dumping ground. I think he wants to support you, is trying, but doesn't know how.

Have you considered that perhaps you might need to come up with a plan together when everyone is on an even keel, that when you experience this, you each agree to go to your separate corners or whatever? Are either of you, separately or together, in therapy?
You may need things from him, but clearly emotional outbursts aren't going to get you the results you wish for, not with this guy. I am pretty sure that is what the video taping is about. He can't handle it and wants you to stop. Perhaps with help you can change up your meds or use other tools to learn to deal with this when it happens....
All the people I know, including myself, have learned to clear out when an angry episode occurs w/ a BP. It is natural to self preserve.
Okay, let me have it PC friends. I just want everyone to be happy here...