Why do my ex boyfriend think that I tryna manipulate him by the bday cake I give him?

We just broke up, and he said one things that I tryna manipulate him by putting his dog picture there and he think that I talked to another guys when I actually not so he thinks that’s manipulate? Last year I gave him silver matching bracelet he didn’t like it cuz he wants gold necklace. I feel so bad that he never liked anything I done for him.
Why do my ex boyfriend think that I tryna manipulate him by the bday cake I give him?
Why do my ex boyfriend think that I tryna manipulate him by the bday cake I give him?
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