I said in your other thread that I didn't believe you had been terminated via texts, but it seems clear here that you are determined to see it that way, without even checking in with her about whether you are correct. Pema Chodron-- who has written a number of really great books about how to stop getting hooked into the same situation over and over, said this (it was selected as her weekly quote this week):

"Our habitual patterns are, of course, well established, seductive, and comforting. Just wishing for them to be ventilated isn’t enough. Mindfulness and awareness are key. Do we see the stories that we’re telling ourselves and question their validity? When we are distracted by a strong emotion, do we remember that it is part of our path? Can we feel the emotion and breathe it into our hearts for ourselves and everyone else? If we can remember to experiment like this even occasionally, we are training as a warrior. And when we can’t practice when distracted but know that we can’t, we are still training well. Never underestimate the power of compassionately recognizing what’s going on. "

Is it possible that you are going into your habitual script mode, which is "everyone always leaves me", and then created a self-fulfilling prophesy to make it come true? Can you not imagine the possibility that this is different than you believe it to be-- that she didn't know how to respond to texts about self harming on a holiday weekend? It seems to me that asking for any kind of therapeutic response on a holiday weekend is a tall order, and that's only compounded by the nature of the help requested (SI is probably one of the toughest issues to tackle face to face, harder by phone, and perhaps really complicated by text). Add to the mix that she might be worried about stepping on your therapist's toes (it's possible she's been chewed out before in cases of multiple treatment providers, as it seems to happen pretty regularly).

Is it also possible that you might need to see yourself as a victim in this situation, to avoid the uncomfortable feelings that come with seeing yourself as having more power and agency? Sometimes if we acknowledge that we have a role in the way that other people react to us, then we have to accept responsibility when relationships go into the crapper.

Even if you continue to insist that you were terminated by text when no words were actually stated to that effect, you can move forward in this situation by simply communicating with her that you would like to see her again. You are not stuck in this big pit of anger and missing her, you can do something about it.

I also don't think there is any specific rule about what counselors, or any professional, should do if someone misses an appointment. Some might never call a client, believing that would be intrusive or invasive. Maybe on the first time of a missed appointment, that person would make a phone call to check in. The second time, maybe not. Your interpretation that you are easy to "ditch" is not warranted by the situation, especially because you are the one who simply didn't bother to show up and make an effort. You can hardly expect her to chase after you to "prove" that you are worthy.

You are worthy regardless of whether she calls you or not. It is likely she is following your cues and trying to give you space, and that she thinks you want to "ditch" her. Not an unreasonable interpretation, given that you didn't show for an appointment.

I would encourage you to be reflective rather than assuming the worst about people. IME, seeing people's intentions as benign and their behaviors as having very little loaded meanings was critical to improving my own social relationships. I was single and without friends for quite a long while, and now I've been married for an even longer while, with close friends that have been part of my family for years. I know first hand that you can change the pattern of your relationships and find lasting and meaningful connections with people, but the work has to start with you, and a good place is to stop blaming the other person.