The energetic work of one Twin Flame can indeed affect the joint connection because of the energetic share and oneness. That being said, for complete healing and energetic balance to occur both Twin Flames must find healing within themselves.
So when you are healed as a Twin Flame partner whether as a pair or solo, you feel the energetic balance and harmony within yourself. If you or your Twin Flame partner is not yet healed, you also feel the chaos in the connection usually by feeling uncomfortable with unexplainable anger, depression, helplessness, intense longing coupled with emotional pain.
Having discomfort within yourself about your Twin Flame connection is a sign of the existence of pain within yourself. Total healing within Twin Flames is reached when you are no longer feeling fear and emotional pain within yourself as a Twin Flame partner.
This is also the reason why Twin Flames can heal each other energetically. If one of them is struggling to accept soul healing lessons, the progress and growth of the other Twin Flame partner can accelerate or motivate the growth of the other.
Remember that Twin Flames are the true symbols of yin yangs. Therefore, both the energies of the Twin Flames have to be in a harmonious state within the individuals themselves.
In case there is an imbalance in energy in any of the Twin Flames, there will be turbulence in the connection between the Twin Flame partners.
I have also learned from my experiences that the shared energy of Twin Flames keeps growing to purify itself to stay in a harmonious state eternally.
I also believe that it is the responsibility of both the individuals experiencing the Twin Flame connection to fully wake up to their Twin Flame process. Therefore, the earlier you acknowledge that your relationship is unique and exceptional, the better the journey will be when you are changing your life to fit your new Twin Flame reality.
Healing happens differently for everyone because for some people, healing can be an overnight event and for others like me, it can take months and years to overcome personal pain.