Criticize BF


I criticize my boyfriend really often.
I am not sure why I am doing that.
My model is different every time because I criticize for a different reason.

C : bf
T : he should be different
F: ?
A: ?
R : I criticize boyfriend

Question is : what makes me criticize to others ? What do I feel the necessity to tell others ?

Usually I am like « I won’t say anything bad about him »
Then when people ask me how it goes with BF I ALWAYS complain.