The best time to talk to our teenagers about relationship and love is before they fall in love. As adults, we have to get to them early because once they fall in love they become less dispose to listening to advice. Let's talk to them while they still do not have girlfriends or boyfriends, while they can still listen to our advice objectively.
Let's spend time talking to them at an early age of 10 about love, about boys or girls at the case may be, and discuss with them why marriage is such a serious thing. You think this is too early? But at this age they would listen carefully and internalize it.
This is the best stage to introduce concepts about the difference between liking and loving, the reasons why girls and boys their age are become interested in each other and how difficult it is to choose the right mate if one is to have a lifelong relationship.
At this age, children would be very attentive and would have lots of questions in mind. You would be surprised how long they would be willing to sit with you and concentrate about the discussion. They would be still and serious until the end of the topic.
After the discussion, it would be best to ask them what they have understood and you would be surprise to receive lots of insights from them. Children listen and understood well and by doing this you would also save them from lots of heartaches in the future.