When we think of all the things we want to do with our other half the answer should be simple; we should want to do absolutely everything with them. We should want to experience everything, feel everything, see everything with no one but them by our sides. When we look back on our lives it's not the things we did do with them that we'll regret, it's the things we didn't do.
There is a longing for a return to a time without the need for choices, free of the regret at the inevitable loss that all choice (however wonderful) has entailed.
It was a long and gloomy night that gathered on me, haunted by the ghosts of many hopes, of many dear remembrances, many errors, many unavailing sorrows and regrets.
Live life and take chances. Believe that everything happens for a reason and don't regret. Love to the fullest and you will find true happiness in life. Realize that things go wrong and people change, but things do go on. Sometimes things weren't meant to be. What is supposed to happen will work its way out.
The body sins once, and has done with its sin, for action is a mode of purification. Nothing remains then but the recollection of a pleasure, or the luxury of a regret.
How often we recall with regret that Napoleon once shot at a magazine editor and missed him and killed a publisher. But we remember with charity that his intentions were good.
Plato says that the punishment which the wise suffer who refuse to take part in the government, is, to live under the government of worse men; and the like regret is suggested to all the auditors, as the penalty of abstaining to speak,--that they shall hear worse orators than themselves.