VER,
I urge you to read the entire chapter7 of 1Corinthians. Just click on the link below. This is the Lamsa translation which INC normally uses. Here, St. Paul talks about marriage and divorce, celibacy (which is observed by priests and nuns), and even mentions fasting.
http://www.aramaicpeshitta.com/AramaicNTtools/Lamsa/7_1Corinthians/1Corinthians7.htm
You can also check other translations. I'll try to find more concerning the issues you've stated.
Thanks