Plus, towards the end of the show, she started to have a crush on Captain America, so there's that to work with. I just think we need more lady heroes.
Well, if they are going to go down the "Bad-girl-gets-a-crush-on-Cap-and-turns-good" route, then it would be much more accurate to introduce Diamondback
, who is an actual Cap supporting character who DID go down that route.
Originally a member of the Serpent Society in the 80's, Diamondback developed a crush on Cap and switched sides, even working with Cap for a time. She is currently Dum-Dum Dugan's partner in the newly reformed SHIELD, and just recently commented that after all of these years, she is still trying to impress Steve Rogers.