This might be confusing the lack of need for validation with the lack of need for other people. Sure, taking confidence from your partner is wonderful but it's not "seeking validation" to maintain other relationships.

Putting everything on one person can quickly become codependency and enmeshment. At some level some codependency/enmeshment is inevitable ("healthy interdependence") when you spend your time with one person, however it can also be very unhealthy.

You can lose your own identity, and end up putting all your needs on the other person. That makes conflict difficult, distance difficult, and you lose your support network.

I think Friday demos are really cute, and a healthy relationship can certainly touch on all areas, but it's important to invest in both other relationships (friends/family/partners) AND yourself. Investing in time with yourself means investing in your hobbies, doing things just for you and maintaining that individual identity.

It's inevitable in childhood, but the parents' role is to create an independent individual. This often not the case, so we see ourselves in need of validation from our spouses, bosses, etc. and it can cause people to stay in bad working or personal relationships.

The trick is to be proud of yourself in an all-encompassing form, admit where you are not good at and improve, if you want to. Advice is welcome but critique should not lessen how you feel about yourself.

Just my 2c and what my experience in life taught me.