Time is a great way to put things in perspective.
In Relationships: If I have a doctor’s appointment from 11AM to 12PM, I’m busy. If I don’t answer you, I’m not ignoring you, I just have stuff to do. So if I don’t see you for a day or two, it might be just we both had stuff to do. The more busy we are, the harder it is to line up schedules, so I might not see you for a week. If people are that busy, it might time to plan something to ensure, if you want to, everyone can meet up. Sometimes, plans don’t work because emergencies happen. I only get worried about the relationship when either the excuses to not meet up are fake, or there’s no desire to meet up. As long as those two things aren’t true, then I don’t worry about the relationship: the relationship is fine, it’s just that life is getting in the way. With patience and time, you will meet again.
In Failure: Just because I failed today, doesn’t mean I will tomorrow. Everyone makes mistakes during the learning process, with patience and time, you will improve your chances for success!
In Regret: Another opportunity will come