1.Because some people will do what they want whenever they want.
They won’t cast you a second thought. Call them what ever names you want but I doubt they will care. Yes, some people will never change. They may have promised to change or may have had no interest in changing. After all they think they are perfect, so why suffer with someone who will never see you as someone of any significance?
Their ego and degree of self importance blinded them to your pain and suffering. Have you waited up for them to come home, did they ignore you or belittle you, did they forget your birthday, to take you out? Was your relationship very one sided and all about them and they decided to leave you for someone else without casting a thought your way? If so, let go, breathe a sigh of relief, you had a lucky escape. Count your blessings. It is no loss!
2.Because maybe you have driven them away.
Have you changed? Has something happened? Did you miss the signals or alarm bells going off? Were they trying to tell you something? Did they act differently? Only you can answer this, or if you find it too difficult, confide in someone whose opinion you respect, but may not always like! You deserve an honest answer before you can make peace and get some closure.
3.Because sometimes you just have to recognize that it was only you trying to make things work.
Maybe they found what they were looking for elsewhere and you no longer met their expectations. You were surplus to their requirements, they lost interest. I know this can be devastating and hard to face, but is that possibly what happened? Sometimes we try so hard to meet all the expectations of another, but it is unsustainable and exhausting.
4.Because sometimes letting go of someone is kinder than holding someone back.
Yes, sometimes letting someone go is the kindest thing to do. Are you now free to do the things you always wanted to do, are you no longer held back from doing something you have been putting off or felt unable to do before this?
Alternatively maybe that is why someone left because they felt held back and stagnant in an aspect of their life that was making them very unhappy, so unhappy they had to do something.
5.Because you have become too dependent.
Did you lose yourself along the way and become too dependent on this person and you craved being with them and having them around you and they recognized this and feel trapped, stifled and wanted out! Were you less independent since you have been together, did you have greater expectations from the other person?