Saying “no” is the only possible option when the will is not there for what is asked from you, no matter what.
I mean, every “no” you say pushes people away; so, no wonder if people look for someone else, someone who can be available when they need them to be. And, if that’s the case, what you find yourself to deal with is aloneness.
However, you never feel comfortable with being left alone for a long time. Because of that, there are times when you happen to say “yes”, when you should have said “no”, to not disappointing the one needing you in that very moment.
Nonetheless, such a kind of decision doesn’t really work for you, because when it’s a “no” the response you get from your body, it has to be a “no” what you say to the other. Differently, they will think that you can be there for them, even if you didn’t want to, and, because of that, they might take advantage from that.