That was very kind of you to give this pup a loving home! I'd be more careful with the feeding situation though. If he's already bullying your female now, when you've had him for hardly any length of time, then look out once he gets comfortable, lol! But it's not fair to your female, she was there first, it's her home: why not feed them separately? I think this is very important, and I had to mention it. As far as reactive goes, I'm not one to give advice on that, since my pup is as well, lol. I have noticed he's a million times better (as in, you'd never even know he's reactive at all) when he's been thoroughly exercised first, before any outings.