As this is powered by an LLM, you are exploring its latent space. That means there isn't one logic behind everything - any association is fair game. Here, probably the strongest one wins.

LLMs are a great way to prompt human ingenuity in mental gymnastics

Great point.

I got “edward” after linking “vampire” and “eclipse” so yeah.

Not sure if this is the point you're making, but that is probably due to "Edward Cullen" of Twilight.

oh my got same

That's weird, I did the same thing but I just got "Twilight".

And "Edward" + "Love" is "Bella".

how do i create love?

To make love you have to put together Prison+Venus= love

If you did that, you'd just get; "Twilight", you'd have to add vampire to Twilight to get Edward.