Sorry mate, you are providing completely false information. 
1 -Whichever way you look at it, the referendum was illegal.The Catalan Supreme Court declared the  upcoming referendum  illegal - against Spanish Constitution -nearly a month before before it took place. Only separatists turned up at voting sites urged by their political leaders to ignore The Supreme Court´s ruling.
2 - according to your own official numbers the turnout was 42% of registered voters. Unverified numbers by any third party!!  
In other words your 90% yes votes - is highly misleading.
A minority cannot decide for a majority. A fundamental rule of democracy.
3 - Mr Puigdemont -the Catalan president was offered several times during the last 3 weeks to have a new legal referendum under proper legal conditions.He was also offered to put forward his case in the Spanish senate.He turned the offers down.
That is why all over the world your Independence is called UNILATERAL ! 
You are imposing your will on a majority.