My wife is hypersexual, but she also has mental illness

I have a question regarding when a mentally ill woman is responsible or not responsible for her actions.
My wife is diagnosed with bipolar disorder with schitzo symptoms as well.
I try to be as understanding as I can, but she pushes limits and tells me details when she demonstrates poor judgement.
She's 24 and up until the past year or so, we have been great together and she had no issues.
Until she was diagnosed and put on medication. She had two lengthy stays in psychatric wards and has been released as an out-patient.
I can tell when she is not taking her medication as she gets ramped up and is hyper sexual, meaning that she is very easily stimulated to act out sexually.
She's actually too honest about it and feels bad after every event that involves poor judgement that results in a sexual transgression.
I want to support her and don't want to put her into a depression, but I also think she could be more accountable for her activities.
The latest example is that she pretends not to understand how easily men are turned on, and puts herself in situations where things could get out of hand.
I also have problems getting her to wear a bra and panties under her t-shirt and shorts here at our complex.
She says it's too hot for that and no one can "see anything" anyway.
It's true that lots of people around here don't wear much.
She went to out laundry room which is down a side passage towards the alley behind our complex. She goes when most people aren't doing laundry so she doesn't have to wait for machines.
You guessed it, no underware "again" . When I got home from work, she had her rings on the kitchen partition and said she didn't deserve to be married to me.
I put them back on her and said nothing could ruin "us" and asked what she was talking about?
She said she was only going to tell me about it once and didn't want to be asked again.
Ok, what happened?
She was in the laundry room, and our property manager was in there doing maintenance on the machines and checking in on things. We're friends with him and talk quite a bit when we drop off our check each month, so he's a really nice guy.
Well, according to her, he complimented her on how fit she was looking and said she was a great swimmer etc.
She said that he scanned her body with his eyes as he said that. She asked if her legs looked too muscular for her upper body? That was on purpose so he would look again. See, this was kind of planned in my opinion.
She also asked if he could tell if she had panty lines through her terri-cloth shorts.
He basically said he didn't think she was wearing any underwear and definitely no bra.
She said that he better watch his eye manners or me might get himself into trouble.
He didn't think there could be any trouble and apologized for looking at her body, but reminded her that she asked.
I know she was flirty, I know her too well.
She said that he looked like he had a bulge going on there. And she asked him how he felt being looked at like that!
He said he didn't care and had nothing to hide. But he's a guy, so.
She said guys have more to see than women do, women basically have nothing down there and guys have penises!
He laughed and said prove it! So she did a quick dip of her shorts. Yep, she flashed him in the laundry room but said you can't really see anything anyway unless the shorts went all the way down so it didn't count
She invited him to feel her muscle and flexed her arm.
He did and got close to do that and it was pretty much a foregone conclusion that parts were about to touch.
She said she was turned on and couldnt' help it.
She invited him to feel her largest muscles, that would be her glutes.
And of course, he did!
Then he confessed that he definitely had a full blown erection, that she was hot.
She looked at his shorts and wanted to "see it".
She said try to flash me that thing.
So, he did, he pulled a shorts leg up and there it was. He wasn't wearing underwear either.
She said that was ugly, but she bet him it would probably feel good to his girlfriend.
He confirmed that she didn't have any complaints and he said he bet she would feel good too.
She said what if we both had our shorts down just enough and see how things felt then.
He turned her around facing the washer and slid her shorts down and she felt him push inbetween her muscular legs.
Do you feel that? He asked.
She said ya, but it's too low.
He also slid his hands up her abdomen under her shirt and cupped her breasts. She said that feels good.
She said that she felt wet and invited him to see if anything might just fit up in there?
His hands slid down her front and arrived over her pussy where he molded her around and slid in from behind.
Then she said she didn't know what happened and they were humping and it was seriously over in less than a minute and they pulled their shorts up and that was it!

So, I'm supposed to forgive that? She says she wasn't thinking and had no judgement when she wasn't "feeling right".

She said she'll never do that again.

Ok, what would you do?