well this is probably a harsh opinion, but as I am loyal to a fault I will speak my heart. To me anybody who can just get tired or bored of their mate are seriously not worth marrying. Who ever that person is who has to have an affair every once in a while just to get a "change" is not worthy of marriage. That is seriously selfish and that is NOT what marriage is about at all. Ugg it can make my blood boil. Commitment is deeper than emotions and flesh, its truly deeper. My brother and his new wife are sick of each other lol, but they are committed to each other, to their marriage, and most importantly to God-- That is love.
I must say I can understand your fears about marriage, I have many many of my own fears. My mom had a hormonal imbalance and for years after her first child and it had caused much damage to our family, not to mention a lot of other problems. My mom's side of the family had had mental problems, such as learning disability, seizures, t retts (How ever you spell it, that twitching disorder) and not to mention many emotional problems such as abuse and depression as well as alcoholism. I also have had struggles with depression and am more likely to pass on the gene to my offspring. To tell you the truth I am scared out of my mind of screwing up my future kids and relationship to my husband. But inside deep down I desire to be married and have kids. To me its a beautiful thing to expierence deep worship of God with a special someone and being able to teach your own kids about God's amazing love, well sounds just amazing. You know what though? I might just stay single anyways, just to be one only for God. THat way I wouldn't have to worry about the stresses of family drama and complications like that. It would just be God and me! However, in the end, it only matters what God says. If He wants me to be married, then I will. If not, then I will remain single. Its not such a bad thing-not at all. God will decide who enters your life, just rely on him. It is only to make us stronger and better Christians in the end. I just cannot agree with "casual hookups" sounds like too much danger to me. Sounds like putting yourself on the edge of a ledge and daring the wind to push you off.