Five things I have learned about being a good partner are:
1) Be willing to out serve your partner.
2) Be forthcoming and honest in all matters.
3) Be selfless and always strive to look out for their goals, accomplishments and recognize their successes.
4) Be willing to be second, give them the glory and lift them up in the good and the bad.
5) Be willing to always go the extra mile if that's what's needed for their benefit.