Samaritan here also.

Along with all the excellent advice and information that's been offered here by several volunteers, I feel like it's important to say to anyone who has a bad experience on the phone lines that you do not have to stay with the person who first picks up your call if you do not feel comfortable talking to them.

You can try to explain your reasons, but you don't have to do that. You can simply put down the phone and call back until you reach a different volunteer. You have no obligations to any of us except to be reasonable and to not be offensive. That's it.

We are all human, we are all very different and have different styles of conversation when it comes to talking to our callers and, yes, there are some people working on these lines who are objectively bad at what they do. That's unavoidable unfortunately, as it's just human nature, but the bad ones do eventually get weeded out for the most part (the problem with that is that the helplines are intentionally untraceable, due to the nature of some of the calls we take, and calls are not recorded, even for training purposes. So once a volunteer has completed their training and mentoring period, unless another volunteer overhears what they're saying to a caller, it's hard to police those conversations. So all we can do is give the same great training to everyone, and keep as close an eye on our fellow volunteers as we can so we can best support them and our callers).

So, even for those who are very good at our jobs, there will always be some callers who simply don't get along with our style or flow, or simply don't like the sound of our voice. No good volunteer will ever be offended if you say you need to call back to talk to someone else. I promise you.

(I'll reiterate here some things that others have already touched on, that in OPs case it does sound as though there are several possible reasons for the ending of their call by this volunteer, all of which are entirely reasonable, but that a reason should certainly have been offered and the way it was done could have been softer and more in tune with the situation. But several people in the comments have described bad or unpleasant experiences they've had with samaritans volunteers in the past so I thought it was important to say that you do not have to stick with the first volunteer you speak to, and please, please try again as often as you need/want to because there are so many of us who want to support you in your time of need, and we will always try our very best to do that.)

TLDR; If you don't like the volunteer, put the phone down and call back until you get someone else. Please do not be discouraged by poor or unsatisfactory experiences. We WANT to support you. We give up our time for free in a high stress environment to do that, and it pains most of us when we hear that some callers have been failed in that mission. Don't give up, we do care, I promise.