How can we be the best when we seek another "half". We are whole on our own & can be whole together.
What keeps us thinking we are 'half', is emotional blocks, co-dependency, beliefs & past programming. All have to be cleared to feel that 'wholeness'. We can have 'connections' pass the time when we are in 'half thinking mode' - karmic connections to learn lessons from, but for higher, true connections, you can still be whole & connected without the 'need' aspect. See link below that I thought was interesting. Further thoughts on this are welcome within the comments section:-
Soul Mates and Twin Souls: The Real Story by Michael Mirdad - Link on YouTube :- https://youtu.be/Cw6i5sAskDs