I was a lapsed Catholic ( Christian for that matter) when I married my Protestant wife in a Protestant Church.
Shortly afterwards, I found my way back to Church and my wife eagerly converted.
When your wife converted. you would ordinarily have privately renewed your marriage vows before the priest shortly after she came into the church. How is it that that wasn’t done?
I am very disappointed that my Church believes that I have an invalid marriage and that I am living in mortal sin.
Whether you sinned mortally when you married outside the church depends on your state of mind at the time and if you knew it was sinful for a Catholic not to obey the marriage laws of the church. Since you (and now your wife) are Catholic you would be sinning if you refused to receive the sacrament of matrimony in the church and continued to live without it.
I do not have an invalid marriage, I was married in a Church and my marriage was blessed by a Protestant minister!
The church accepts that your marriage is legal. As a Catholic, you were required to be married in the Catholic church or to get a dispensation to be married in a protestant church in order for the marriage to be a valid sacrament of matrimony. Since you didn’t do this, the church want you to have this sacrament as well as being married legally.
It’s kind of sad that my Church won’t accept me.

I’m just now, literally this week coming to terms with this.
The church does accept you.
I just can’t picture Jesus walking up to me and telling me that I’m a sinner for marrying in a Protestant Church, especially where I was at that time of my life in relation to my faith?!
Of course not, neither does the church. All you have to do to return to a full practice of the faith is to go to confession and renew your marriage vows privately before the priest.
It also bothers me that before Vatican II, Catholics marrying outside the Church were excommunicated, now today, they are not excommunicated…the rules changed…so the rules will likely change again?! That is frustrating, as it tells me clearly that these are seemingly man made bureaucratic rules.
Before, If a Catholic knowingly and willfully entered into an invalid marriage, it was a serious sin and the penalty of excommunication was automatically attached. Today it is still a serious sin but the person isn’t automatically excommunicated. Excommunication is a canon law penalty that doesn’t seem to mean much to people today. Catholics are still obliged to follow the marriage laws of the church under pain of sin. That is one of the ‘precepts of the church’ you may have memorized in catechism class.
Time will tell where I end up.
This issue of a valid sacrament of matrimony must have come as a surprise to you but the problem is easy to correct. I hope you end up still in the Church with the rest of us. /quote]