I know what it feels like to reach out to someone in a moment of desperation and not really get the response you need. It hurts.
Evaluate your behaviour, what do you really need from your friend? When you have identified what you need from them, tell them. For example, if you need to talk and them to listen, tell them and say, ¨Hey Friend, I am so stressed out and need to vent, can I use your ear? You don´t have to do a thing, just listen. Thank you!¨ They will likely be grateful and very willing to help you. In order to maintain a friendship when each of you wants or needs something more out of the relationship, create some boundaries and clearly communicate together around shared expectations and needs.