Thank you for sharing ((justempty)) and no I don't think you're shallow. I'm very sorry you lost your husband.

I agree it is unfair the perception society has towards older women compared to older man. For example. men are still considered attractive if they're gray and have wrinkles. Unattractive men can also get young gorgeous women if they're rich -example Hugh Hefner...IMO eeewwwww.
I can relate a bit to how you feel. I used to be a model when I was was in my teens and early twenties.....always turning heads. Even sometimes I didn't like the attention but it's still a self esteem boost nevertheless. True I don't turn as many heads but when I'm all fixed up, I jokingly say I've still got it lol. I do believe if a woman eats well and exercises, she can still be appealing - fabulous at 50, 60, 70 etc.
As far as not being lonely - I hope there's still men out there who don't have looks only as a priority. You also can discover your personality and the best way to do this is volunteer or join some hobby clubs. I don't know your age but if you're 50 and up you can join specific groups like this and even travel groups geared to your age.
Start exercising and eat healthy. Go out clothes shopping at a store that will help you boost your wardrobe. Sure you might be as young and attractive as before, but you can be your best now. Best of luck.