Maybe not. Ever said something like "if we go out I'm not drinking" or "I'll go but I'm not going to XYZ" only to get there and do that thing? Ever decide you weren't going to buy something only to find a sudden deal, or a great sales pitch, Is it possible that you may not be the first person to ask them out, and that over time their will to say no or their reasons to lightened? We often tend to internalize and try to frame other people's choices or problems or emotions on us. We make their lives about us- how their no and subsequent change of mind has to be rooted with us. In truth we may be the anchor point in our own lives but seldom in the lives of others. It devalues you no more that they said no and picked someone else than that you were rejected and will eventually ask someone else. Would your reason for asking that next person be "because the one I liked said no" or because you were single and liked them? Sometimes we need to get out of our own heads.
It can. But our emotions influence our mind and our mind influences our emotions. This is frequently used as a principal in counciling. It's no coincidence that people with depression or other afflictions often internalize strongly. As a human being we will have emotional reactions, many based in last experience, or even instinctual. Taking a step back to view the "bigger picture" without making events center around ourselves can help us stop negative cycles before they start. Nothing can ever truly eliminate all suffering so long as we are alive, but by understanding our feelings we can take positive steps to process and work through our suffering and get to a better place. As a nice side effect seeing the world from another's perspective is a good way to build bridges and reduce conflicts.
In italian like in french, gn is pronounced like the spanish ñ