Yes, this is one of the reasons we have to be so cautious about entering another relationships - we want one for the very good reasons that we miss the fun and intimacy of our old one, and the very bad reasons that we were desperately hurt and rejected, and our self esteem shattered.
If we look to a new relationship, or the restoration of our former one to make us whole again, then we are actually making the same error as our WAS, although less drastically. Of course we have the right to happiness, but it usually a by product of a life well lived, imo
This is our chance to re-find and sort ourselves, and decide who an what we want from our lives and what we can give. It is the giving as well as the taking that matters. The MLCer is all take, the imbalance is very marked.