<human>: Can you condense the text into a few key points?

Through a series of events, I somehow stumbled upon the fact that my boyfriend of a month has a diaper fetish. Communities have referred to it as AB/DL, but besides that I don't know much about it.

I don't want to let him know that I know since this is something very private to a lot of people. I want to wait for him to tell me himself before I do anything.

BUT in the meantime, I'm actually kinda interested in learning more about AB/DL and don't know where to start. I guess it's because I have a urine fetish (specifically with public urination), but I feel like our two fetishes could somehow be related.

Any suggestions for how I can be supportive of him and also any pointers for how I should approach becoming interested in AB/DL?
<bot>: Boyfriend has AB/DL fetish. I have urine fetish and am interested in learning more about this and being supportive of him.