Together, shop for the gifts, and have the family over for the most scrumptious holiday dinner. It is important to build a strong, healthy relationship with the families as well. If one of you masters something special, receives a promotion at work, or achieves some great feat, there could be a small spark of jealousy on the other persons side.
It is the same for marriage.
The Grass is NOT Greener! If your mate makes a mistake, which you both will, let it go, or if appropriate, laugh about it. Explorations Find something they you are both interested in exploring and do it together. Do not make excuses in fear of your mate not liking, loving, or respecting you. Focus only on the special things your mate does and relearn to put the unimportant things aside.
It will not automatically be easy but it is possible.