I found out my friend has always been lying

Good day mamas and papas in the house, please I need your help on how to handle this issue o. Me and my best friend married almost at the same time. We have both been married for 4 years now but my friend is always making me feel terrible about my marriage. She comes to my house and she says things like "you people have not changed your television? This old lamp is still here. Are you people traveling abroad anytime soon because my hubby and I are going next week. Won't your hubby change your car, even after giving him a boy?" She says some of this things and more. There was a day she came to my house and met me and hubby in the house, there was no light and the gen was bad so we were sweating, she she entered she said our house felt like an oven that my husband needs to move us to Lekki o where there is enough breeze like her husband did. That day my hubby just laughed and said, he cannot compare himself with her hubby now, that her hubby is a big man. That day I felt really insulted and I told her but she just laughed it off. I went to their house early this morning to pay her a visit and from the gate, I heard them, fighting and throwing things at each other. When I peeped, I saw that there was a pregnant woman in there with them. Apparently her husband had impregnated another woman and brought her home to meet her. I don't even know if to feel bad for her or be happy that at least she would stop disturbing my home. I just tire for her matter. I don't know what to do again. Please house, how should I handle this or should I just act like I don't know anything? I have turned back home sha. Please I am waiting for advice o