It is terrible for a person to suddenly lose one's spouse after being together for 40 or more years. It is difficult to overcome the loneliness which suddenly engulfs you even though there are others to console you or to talk to. Yes, it takes time. Time will heal.
Old is not gold. Old is suffering. A neighbor of mine who had passed away last year, told me before his demise that he was suffering so much everyday that he wished he died early. My wife's brother-in-law who is over 80 years is now blind and with limited movement due to high blood pressure and diabetes. He too wish he could "go" to meet his "creator".
How wonderful it is to be young again (ha ha).