Personally, I feel that Carol and Peter should take their time with their friendship slowly in the background. In addition, it might be best to diversify Peter's mutual relationship to no more than 6 female heroines because I don't think that any one person on the Spider-Man side should standout as a potential love interest. The idea is to expand those mutual relationships beyond The Black Cat. Thus, if there are 5-6 other heroines(Besides Black Cat) who are interested in Spider-Man, than a writer could choose which one to use because he wouldn't be stuck with using The Black Cat. There are writers who might like The She-Hulk, Silver Sable, Psylocke, Spider-Woman, or Ms. Marvel. So it gives the writer a chance to use a their favorite heroine(who has a positive chemistry with Spidey) in a team-up story with Spider-Man that they wouldn't otherwise had used. I could see a mutual friendship among the women I have mentioned for Spider-Man. But, it is best to leave things at the close friends level and not extend it into a serious relationship because it would cause a conflict of interest among those who many or many not like the idea. Therefore, a longterm friendship with a heroine might be ideal for Spider-Man with a little tension between them.
I think that my view on this has to do with the idea of Spider-Man forming a mutual relationship that he had with Felicia Hardy before OMD. I felt that there should be a close group of heroines who could have a close relationship with Spider-Man like:
Silver Sable
Ms. Marvel
Psylocke
Spider-Woman
She-Hulk
Black Cat
I feel that anyone of those women would work best for Spider-Man. Especially if a writer likes the idea of a master list of heroines that they want to use if they are doing a Spider-Man team-up story. I simply like the idea of diversification to at least 6 heroines who are close friends with Spider-Man because the potential of doing a bigger story is there. I don't like the idea of a rushed relationship as it was done to The Black Cat and Spider-Man. And this might be the reason why Dan Slott has resisted the idea of doing this type of relationship. Thus, I like the idea of the selected heroines in a relationship with Peter in the same manner as his relationship with Mary Jane or Betty Brant.
When I refer to a relationship with a female hero, I am implying on the idea of Peter expanding that relationship to at least 5 other heroines in addition to the Black Cat. This way, we can see a different side of Spidey's relationship with heroines that are different from his relationship with The Black Cat.
Personally, I don't think that Peter should be in a relationship with anyone at this time. The only reason why fans were hostile towards Carlie because the relationship never took its time to grow organically as a mutual relationship first. This way, the fans who have come to like the character. I still feel that Carlie isn't out of the game with Peter Parker. It's just going to take its time from this point onwards in a slow and steady manner. Just like Peter's relationship with Mary Jane is just taking its time slowly.
The Black Cat recently rejected him because she didn't want to be known as the rebound girl for Spider-Man. Any woman who is interested in Spider-Man/Peter Parker is not going to have a serious relationship with a man who just got dumped by his recent ex-girlfriend. There are no Friends with Benefits for Spider-Man.
