Paul does not, of course, mean that the unbelieving husband is saved by the faith of the believing wife. Clearly, he only means that the marriage relation is sanctified so that there is no need of a divorce. If either husband or wife is a believer and the other agrees to remain, the marriage is holy and need not be set aside.
The fact that
1 Corinthians 7:14 is not speaking of some type of household salvation is clearly seen in the rhetorical question that Paul asks in
1 Corinthians 7:16: “For how do you know, O wife, whether you will save your husband? Or how do you know, O husband, whether you will save your wife?” The obvious answer is they don’t because only God knows who will be saved and who will not be.
I understand the fear of change and the fear of loneliness. Do you believe that god can provide you a mate? Are you able to wait for gods timing? Are you mentally health enough for rigors that is marriage. Building and maintaining a strong marriage is the most difficult job that we humans face.
Depending on where you look the divorce rate is between 50-67%. In this number, one or the other started being disillusion within 12 months with divorce occuring within 48 months. An average of 2 years for recovery.
I would suggest you find a mentor a lady with 30 years of marriage under her belt. A christian lay who you respect. Make a list of expectations of what you want from marriage. See what she thinks use her experience to groud yourself and your expectations. Far to many run into marriage and the reality begins to set in. This person isn't killing themselves to make me happy. The things that drew us to them is a distant memory from the hectic day to day of children, jobs and social engagements. Love fades and regret sets in.
Don't be fooled by this idealistic movie love. This he/she makes me happy thing. No person has the abilty to make us happy they can enhance this feeling but we make ourselves happy.
Good luck on your decision. Dig into the word. Stay open for god to speak to your heart.