"I was going to visit my secular friend" which was my aswer should be accepted.
I don't know if that means quite the same thing. I have gone or I went both mean that you did go, but I was going to sounds like a plan that didn't happen. Like, I was going to go but then something happened and I didn't.
לבקר ב is "to visit (insert place here) Although לבקר את can mean to criticize someone it can also mean to visit someone. Basically לבקר can mean to criticize and to visit