#19 The insecure relationship. Both of you may lead your own independent lives and have your own friends. And as much as you try to convince your partner that you’re loyal, your partner may always assume you’re cheating or are interested in someone else. You can help your partner to a certain extent, but beyond a point, you can’t do much but let go. [Read: How to handle insecurity in a relationship]

Here’s what “dating” isn’t—it’s not exclusivity. Not guaranteed exclusivity, anyway. Even as things grow more serious, exclusivity is something that always requires a frank conversation about what each party wants, and without that conversation, it’s not safe to assume the two of you are on the same page. Regardless of how much time has passed, how often you see each other, etc., two people being committed to each other, always requires that awful, painful, awkward conversation. Always.
^ "Speed dating all about looks and not personality". China Daily. 2008-11-13. Retrieved 2010-12-09. ... Researchers found that in smaller groups, people trade off different qualities in prospective mates – physical attractiveness for intelligence. But faced with too much choice, however, they resort to crude approaches such as choosing solely on looks.

My friend met a nice girl on eHarmony a few months ago. He is from BC and she is from Ontario. They started talking every day, and he has even visited her twice since then. They are what I would call “dating to see”. They are trying to get to know each other enough to decide whether to not to move into a serious and committed relationship (see below). But at this stage of dating, they are not ready to pick up and move to the other person’s city.
Blind dating is where two people who do not know each other are set up by someone else to go on a date. Blind dates are usually set up by friends, family or co-workers. You can ask your friend to set you up on a blind date, or it could come as a surprise. Don't hesitate to let others know what you're looking for. That way, your blind date isn't so blind.
If you tell a teenager that "necking" or "making out" is wrong, that it should never be indulged in outside of marriage, that it robs his future marriage of much of its possible joys, delights, and blissful happiness in marriage—the young man or woman will probably look at you rather pityingly, wondering how you could be so naïve! He would probably reverse the truth and shoot back, "Where have you been for the last hundred years, that you do not know the facts of life yet?" This is the attitude that many teens have toward adults.
#9 The trophy relationship. You’re dating your partner because it makes you look better or gives you something materialistic in return. Gold diggers and men with trophy wives are the best fit for this type of relationship. The love in this relationship may be true, but the foundation of the relationship is built on shallow material ground instead of romantic compatibility.
A casual date involves two people accompanying each other and participating in an activity or event that they both find interesting. This may include a meal, a movie, a concert or an evening at a club or bar. Usually, there are no romantic emotions involved in this type of encounter; the focus is on enjoying a mutually enjoyable social activity. Both parties are free to date other people and there is no commitment to continue dating each other. They are mostly interested in having a good time.

Having clarity about which type of dating you are doing is helpful not just for me, but for yourself (and your date), so you can figure out what the heck is going on. Many relationship problems I’ve seen stem from couples not being on the same page about what type of dating they are doing (i.e. one person is more serious and wants the relationship to go somewhere, while the other just wants to have fun).
Humans have been compared to other species in terms of sexual behavior. Neurobiologist Robert Sapolsky constructed a reproductive spectrum with opposite poles being tournament species, in which males compete fiercely for reproductive privileges with females, and pair bond arrangements, in which a male and female will bond for life.[4] According to Sapolsky, humans are somewhat in the middle of this spectrum, in the sense that humans form pair bonds, but there is the possibility of cheating or changing partners.[4] These species-particular behavior patterns provide a context for aspects of human reproduction, including dating. However, one particularity of the human species is that pair bonds are often formed without necessarily having the intention of reproduction. In modern times, emphasis on the institution of marriage, generally described as a male-female bond, has obscured pair bonds formed by same-sex and transgender couples, and that many heterosexual couples also bond for life without offspring, or that often pairs that do have offspring separate. Thus, the concept of marriage is changing widely in many countries.