1) Nothing is assured, and it's better to be able to roll with the punches.
2) You can be alone and not be lonely. You can be lonely and not be alone.
3) Life without love is hardly living at all.
4) The person you would give everything for sometimes needs something you cannot give. That isn't your fault.
5) The person you thought was infallible can have abusive behaviors.
6) The thing that hurts the most is feeling inadequate for the person you love. Don't make anyone feel like they're not enough.
7) You can't fix a relationship by yourself, and problems are hardly ever just one person's fault.
8) Doing what makes you happy isn't always as easy as they make it seem, but it's important to try anyways.
9) Focusing on the past does you no good in the present. Focusing on the future can blind you to what is happening in the now.
10) Despite everything, in the end, all will be well. Learn it, live it, believe it.
Just some observations I've made lately