It does a great disservice to both yourself and the other person, this kind of hiding, which very often is disguised as caring.
Over giving and over caring to others and unhealthy merging, these are strategies to bury our head in the sand.
Unfortunately, they have the opposite intended effect. Being thoroughly repellent, ultimately you will be abandoned, ultimately re-triggering the pain you were attempting to avoid.
See, that’s the thing: you can only avoid your pain for so long. We get hurt until we get the joke.