[Rachael1983]

Is getting a trainer or behaviorist an option for you? This could help you.

I learned in my training class that when introducing dogs, you should have both on a leash, let them sniff butts and when the dogs do well, you reinforce with lots of praise and treats, any negative behavior, you walk them away, say no. Try again.

Keep doing this until the dogs give you the behavior you want. Limit these sessions to 1-2, 10 minute sessions a day. Dogs should be left to sleep in crates so there's no fighting in your bed. Both you and your gf should be on the same page so there's no doggie manipulation.

Hope this gives you a bit of a start but consistency is key and you have to be the alpha.