It is likely that whoever called for the welfare check had good intentions due to her behavior on air that night.
Quite possible, but seeing how vicious the fans are, no one in their right mind would admit it.
But if Heather were to find out Vara or some other 'friend', whom she put her trust in and spoke hours on the phone with, made the call it might be a big deal to her. When she returned to the show she seemed very mad someone would place that call.
She sure did. She jumped to "they are trying to get me off the air" rather than "someone was worried and concerned."
It is also likely she only trusts her b/f now. But she's not long met him, if he is real, so although she may have some implicit trust in him there may exist moments of paranoia. If things sour with this b/f how fast do you think he'll spill the beans. Can she truly trust this b/f?
I can't imagine her trusting anyone, if she appears to I think she is faking. Also, that is indeed a big IF on if he is real, is it not?