2. Love and friendship. Don't lose friendship because of love. Love is only a part of interpersonal relationship, don't lose the whole circle of friends.
3. Love and material things. Rational love must be built on a certain material basis. Love in college may not need too much material, after all, there is no pressure of life, but if you want your to love for a long time and be together after graduation, that material is the key factor. You should realize that a beautiful love will eventually face the cruel reality, be prepared for it, then work hard for it, and leave the rest to God.
4. Love and sexual relations. Don't hurt others because of selfishness, and don't hurt yourself because of impulse. I never advocate premarital sex, maybe I'm too traditional, I just think the best things are reserved for the best time to enjoy. The occurrence of sexual relations will always hurt girls more than boys.