I know you might not want to listen to what I'm about to say, but if you do, you could possibly save your marriage. If you really want help with any issue, I mean if you really want help with it. You could do so by going to the Bible. Not just asking church and family members. But by going straight to the Bible yourself. Genesis 2:22-24:
And God proceeded to build the rib that he had taken from the man into a woman and to bring her to the man.
23 Then the man said:
“This is at last bone of my bones
And flesh of my flesh.
This one will be called Woman,
Because from man this one was taken.”
24 That is why a man will leave his father and his mother and he must stick to his wife and they must become one flesh. 25 And both of them continued to be naked, the man and his wife, and yet they did not become ashamed.
If you have a husbeand who doing supporting you financially, he's doing something right.
What I'm trying to say it is not unusually or wrong for him to want to spend time for you, maybe you guys as a family could do this more often. Families are much too broken up nowadays.
The first step you took was to ask what's wrong with me, which shows that you are trying to fix this marriage.
God designed marriage to bring a couple deep-seated joy and contentment. He intended for a man to “rejoice with [his] wife” and for a woman to love her husband and to feel that her husband loves her as he does his own body. (Proverbs 5:18; Ephesians 5:28) To create that sort of bond, a couple must learn to trust each other. Equally important, they need to develop a lifelong friendship. When a man and woman earn each other’s trust and work at becoming the best of friends, their commitment to the marriage will grow. They will form a bond the Bible describes as being so close that it is as if the two people were “one flesh.”—Matthew 19:5.
I would figure that the reason why he doesn't like you going out by yourself is because he doesn't want you yo cheat on him. He simply doesn't trust you. So what you guys really have is a trust issue. And a weak relationship. So let him build up a relationship with you and love you and his kids. He's not beating you, saying nasty things or endangering you or your children. The family unit is the closest bond you'll ever share and it only comes once in a life time. And be invovled with a greater work that of instilling God and your children, especially your girls. If things don't work out let me know. But then too we all have things to keep working on. Remember that. Keep working on getting your kids to learn why drugs are bad and sex before marriage can lead to HIV and a host of sadnesses and illnesses that are sometimes incurrable. So, get the focus off of yourself, off your husband and put it on God and your kids. Take out your Bible and read with your kids every day and by yourself. These problems are very common in society today but remember these words. Jerimiah 10:23 :I well know, O Lord , that to earthling man his way does not belong. It does not belong to man who is walking even to direct his step. 2 Tim 3:16,17 All Scripture is inspired of God and beneficial for teaching, for reproving, for setting things straight, for disciplining in righteousness, 17 that the man of God may be fully competent, completely equipped for every good work.