This is the last time you do this in your life, you're slowly getting exhausting?

Was told this by my boyfriend when I bring stuff up that I don't like and I told him I don't wanna have it cause a problem later , I wanna be able to talk about things and be reassured and same with him and I said he should stop threatening me about ending our relationship and he said stop being exhausting then, if I don't talk about what's bothering me I bottle it up and it isn't a good thing for our relationship so I rather tell him and fix it or at least get reassured but he gets annoyed and doesn't like it, any suggestions on how to do something else instead that works for the both of us without starting an argument
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So I brought up something else again and he called me toxic, told me to grow up and said his done with this for now, says we can be friends
This is the last time you do this in your life, you're slowly getting exhausting?
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