TIFU riding an "abandoned" bike outside my apartment.

So in my apartment complex some dude OD'd on drugs and died and the management and family cleared out the apartment. RIP to the guy, didn't know him but he was young. This was like 4 months ago. No one moved into the apartment. It has been empty since.

Awhile ago an old bike appears outside of his place on the grass. It stays there for about a week. Unlocked, in a weird spot. Then it was moved into the street, unlocked on the curb. The landlord had been clearing out the place and was throwing stuff out on the curb. It was outside, unlocked, through 2 different rain storms. I thought it was odd but figured whatever. It was like this for another 5 days. I thought it must have been this guys bike.

About a week passes and it's still outside, unlocked, so I figured it's this dead guys bike and the landlord is leaving it out for grabs. It must be abandoned. I hop on it (again, after 2.5 weeks of it being outside, unlocked, on the curb) and ride it around the parking lot. I go to bring it to my place, but I felt weird about it, so I brought it back to the curb. Here is where i fucked up.

Some woman hops out of a car that was parked there the entire time and looks at me, I have never seen her before. I say "do you know whose bike this is? It's been outside on the curb for almost a month". She exclaims that "yeah that is my bike, I just got it". I say "oh okay I had no idea whose bike this was, I thought it was the dead guys". She, being visibly uncomfortable thinking I am a bike thief and psycho (it's also night time when this happened) tells me "yeah I don't feel like carrying it up the stairs, so I parked it by the curb". I am now dying on the inside, as she probably watched me hop on her bike and ride off with it, only to bring it back. I feel like a criminal and extremely guilty and terrible. I now cannot leave my apartment in case I see her.

I say "oh wow I had no idea whose bike it was; you should probably lock it up haha". She just looked at me in silence and I scurried off. I now want to die and feel like some kind of criminal. I feel sick to my stomach. Is there anyway I can fix this or do I just cringe and die internally If I run into her again?

TLDR: Found an "abandoned" bike left outside for like a month, rode it around the parking lot to be seen by the owner who now thinks I am a thief.