Single people today

Today I am very discouraged with the singles scene. I am 46 years old. Was married for 14 years and am now widowed with three teenagers.  The people in their 30's and 40's that I have encountered "out there" act as if they are 18 years old. It's the same old scene time and time again.  Just want to have sex with no strings attached and move on.  No feeling. No emotion.  Just want to have their needs met. Selfish, selfish, selfish. I have yet to meet a man (and maybe it won't happen till I'm 80 years old) who is interested in listening to what I have to say instead of going on and on and on about how he has been hurt, he has been scorned, how important he and his feelings and needs are. UGH!!!!!!!!!!