Sex with partner

Im starting to feel like im not good enough anymore for my partner sexually.

We use to have sex all the time every night once if not twice.

Now we barely do have it. I dont know whats changed.

He says its not about sex in a relationship which is true and i agree but far out sex is great and when i want it i dont get it! But when he wants it he gets it makes me so mad !

Any advice cause im sexually frustrated at this point and tempted to buy myself some sex toys to pleasure my self