I do definitely think though that Bruce was willing to kill Bane after destroying him in their second fight before that bitch Talia stab him. He definitely should have killed him, because Bane's death kind of sucked after being such a total bad-ass, but I kind of forgave it since Selina definotely needed a moment to show she can be trust worthy.

That quick flash of emotion on her face.
The way he's smiling and flirting at her like she didn't do anything that needs forgiving at all.
And oh, I love how the Batman music kicked in the moment we see Bruce's shadow.

Emotional side of Selina and how she's changed throughout the movie as well as her feelings for Bruce.

Just the look on her face when she hears his voice like she can't believe it or might be seeing a ghost . Than when she realizes it really is him, she goes back to her hard ass self to hide that she's actually beyond glad that he's alive and actually likes him . She was obviously expecting him to be pissed off at her for what she did, and not want anything to do with her, which is probably why she tries to act like her old self again, but of course he sees through all of it, and I love the look on her face when he actually says he still trusts her and wants her help .

Some would probably say Selina showed a lack of emotion , and if she was a dismal in distress, that would be true, but she isn't so she didn't lack emotion at all for the person she is. She isn't really the character to break down crying for someone she probably hasn't really fallen in love with just yet, but obviously she did care because she saw how wrong she was about him, and felt guilty, and probably partially responsible for what happen to him.

In the first half I think it was all attraction and who's better at the chase game between them, while when Bruce came back to Gotham and said he still trusted her, it became something more

This scene alone made me like Selina Kyle as a character a a lot more.

Selina was the one killing Bane in the end It wasn't cliche and it was unexpected I don't think Bane ever believed she would come back to save Bruce and kill him

"Tell me where the bomb is! Then you have my permission to die." Of course, that's just before Talia stabs Bruce, but he was going to kill Bane. It wasn't going to be with a gun or anything but he had destroyed Bane's mask and he was slowly dying.

Honestly, I was fine with the way Bane died. I know there were some that thought it was too quick and easy for him to die from a shot from the Bat-pod, but after everything that happened I kind of like that one minute he was talking and then the next minute 'Boom!' and he's dead. Plus I love that, even though Talia didn't know it, it was kind of like "You try and kill my man? Well, guess what I just did to your's.

how Catwoman's choices affects Batman's fate in Arkham City and TDKR.

Bruce maybe comes home late maybe one or two nights making Selina jealous and hurt, and being the suspensions woman she is follows him eventually. And when she does, she almost starts to screaming at him, and threaten the other person's life , but it than turns out that he knew she loving him, would get suspensions and follow him, and instead he was planning a secret magical night for her where after their special night he proposals to her with a huge ass diamond ring . Also have Alfred and Lucius watching the special night from Skype, maybe throw in Gordon, or even Blake . His parents and Rachel watching from afterlife. And throw in a band or something performing behind them during their special night .

Think it could make a awesome fan fiction. Knowing Bruce I definitely wouldn't expect him to throw in a cliched proposal where he just gets on his knees and asks her to marry him. He would come up with something creative to proposal to his woman I'm sure, and it definitely could involve, something that might piss her off at first .