Getting married without the permission of one's father

Q: If I have married someone without my father's permission, is it valid? There were people who were present during the marriage but I don't know them. Hanafi mazhab allows it but in Tirmidhi, its against this type of marriage. Why is it? What should I do now if I got married like this without knowing. Should I get married with him again with my father's permission?

Husband masturbating

Q: I have recently found out that my husband masturbates when he thinks I'm asleep. I know it is not allowed in Islam. What should I do? Should I ask him directly or just pray for him or ask my parents for help?