What to do if you always fails to understand your partner??

It could be that it is partly the fault of your partner. To have a successful relationship with trust on both sides you need to communicate. If you don't feel you understand what is happening perhaps it is because you are not being give the complete picture. I often jump to the wrong conclusion about my husband's actions because he hasn't fully explained why he has acted in a certain way. I get upset with him because I think he doesn't care or he has forgotten something and when I delve deeper there is usually a perfectly reasonable explanation for his actions.

rofl/....... hes not ur love cuz love is made up of trust and understanding so technichally its a crus not love learn to trust then love

that also happens to me ... sometimes it's just paranoia but other times it is true ... in my case my (x)girlfriend was acting weird and lieing so that she would not hurt me because she knew i loved her alot and some some were lies other throughts ... if many lies appere then it's hard to tell what is real and what not ... hope for you that is not the case ... i think you should talk to him about this but not up front, circle round what you want to find out and see if you feel lies or if he is true or what are the reasons ...