I dyed my hair for over 15 year blonde and then my boyfriend wanted me to go red I did not strip my hair went to sallys beauty shop and bought blondish red dye now my hair is a purpleish red please hep

I personally think it's cool and funky! But I guess it shows that something went wrong right?
Why don't u simply go blue-black and cover everything up, it might also suit u.

Some red shades contain a violet base which makes the hair look purple. Since you want your hair to look more strawberry blonde than red, you will need to use a color with a red-gold base. Try using a hair color remover to strip the color, then re-color your hair.