Did I overreact?

[Anonymous]

The other day me and my now ex got into an argument over me attempting to jokingly flirt with her (she took it as trying to force sexual conversation on to her) but during the argument she proceeded to say in a unjokingly manner “are you dumb” and then when I said that was disrespectful she said “idgaf” and then ended up calling me a snowflake so I decided to end it. And the next morning when I woke up I was blocked on everything. And I was fine up until today (we had planned for over a week spending the day together) and now I just wonder if I overreacted or if it was appropriate to end it?

[Craftsman]

It may be that both of you over-reacted, and it may also be that you are both flakey enough to be called snowflakes. There is a bit of thick skin sometimes needed to get along with our fellow humans, and that is something lacking in many I've seen these days.
The thing I see is, if there is a lack of respect and a lack of communication, there is little that can be done unless both people sit down and start talking. Either one clamming up, silent treatment-ing, or otherwise blocking the conversation bodes ill for the success of the relationship. Name-calling and blocking have never worked in keeping a relationship going, and has, in my experience, nearly always strongly contributed to relationship destruction.
To answer the question in the last sentence of your post, I think it was an appropriate reaction. If she doesn't unblock, and if you don't talk, then go out and find someone who does listen and with whom you can kid around without anyone getting their feelers hurt.

[Avicenna]

Sounds like she overreacted somewhat, but you both sure communicated poorly

[Anonymous]

The fact she calls you a snowflake shows whose truly the disrespectful one

[Anonymous]

You both sound childish, so maybe you are made for each other.

[Iron_Man]

You lost your temper threats don’t work at all they upset people and make them insecure. Immature move. Fix it