A Touch of Dragon's Venom

What if Spider man had been something else entirely, and his spider powers were given to him before he had activated that power? What if Venom had left a part of himself behind to help Peter, because it realized it had truly been a problem for Peter and caused him even worse problems than he had originally? What if Black cat got caught up in all this happenings and actually fell for both of them?
(Disclaimer) Yes Spider man is VERY out of character, as is Black cat, and, yes, this is a what-if scenario. This is Not, in any way, how I actually view the two characters, Spider man is far too much of a "do-gooder" to do even half of what he will do in this. Most of the changes in his personality are entirely due to something that is explained later in the story.
Marvell owns everything, except Silver, unless they did that too.(Symbiote part is totally theirs)