Premarital relationship

Q: I like one girl and she also likes me but due to family situations we cannot marry now or do nikaah in public but to avoid gunnah of zina we want to do nikaah and when the time is right we will marry insha Allah. Is there any way in shariat that before we meet each other alone in any place before that, can we do nikaah by our own without qazi and witnesses? Can we do nikaah on our own?

Marital problems

Q: I want to ask you if my marriage is still valid. Its been 4 years and my husband didnt have any physical relation with me at all. We sleep in the same bed but he doesnt even look at me. He fights almost everyday with me and he shows no interest in me at all. I asked him so many times but he doesnt answer. He doesnt have respect for me. I am living with him only for the sake of my kids. My husband hates me. He doesnt have any medical problem. Please help me.