Chemistry does help in a relationship...Yet spending time together eg. movies, a brunch, lunch, or dinner date is good. I would go on each, a brunch will tell you how that person behaves in the morning or mid morning, at other times go out for lunch and dinner. Sex is not the key not the key to a good relationship because after awhile that wears out, spending time doing silly things like swing, go down the slides in a park,roller blade, go for walks, try to find common interest and have fun doing it. My advise stay away from sex, get to know the inner person know who he or she is learn everything as possible as you can about them this will tell you if this is the person you can be with and enjoy being with, a person who you can stay with for the rest of your life. The problem today is that if we're not in bed it's not normal, yet why go to bed with someone that you don't even know. Just spending time with each other for a month or a year still you really don't know the person. One has to see how his person reacts during a stressful time, during happy times, etc. it takes time to know someone. So just enjoy each other and have a fun relationship and get to know the inner person before you get to know the sexual person. one could be marry for five years and still growing in knowing each other. Do fun things, go to museums, concerts, movies, plays, comedy shows, library, take a hobby together, like running, walking, biking, etc. there are so many things, one can do for fun and alot of things you can look up in you phone directory that are free and have fun doing it.
well I hope this was helpful....