Are you a man or woman that panics when your relationship partner needs space? You should not. Needing space is natural, but don't get me wrong. There's a difference between needing space and just downright not caring about your feelings.
When you feel your partner is branching away, get more in touch with your feelings and protecting your feelings. The goal is to take care of you. No one can disrespect you or make you feel less than without your consent. Read that sentence again.
You will never be able to control what someone does at any given time,but you will always have control over your actions and how you react to the actions of others.
The more you take care of yourself, the more your partner will notice. He/she will learn to connect being with you as a positive and fun experience time and time again. Yes, life isn't always sunshine, but you want more good times with your partner than bad times.
The next time your partner needs space, give it to him or her. When you don't place high importance on your significant other's actions, you gain more power and respect. A good partner will feel inspired that you have such great self control and want to enjoy time with you more often.
It's important to give yourself and your partner space from time to time, to ensure you don't lose your sense of self and independence.