I met this guy on a personals ad through the internet He seems to be a perfect gentleman Do they exist?

We started seeing eachother about 2 and1/2 3 months ago, we only went out 2 times each time not being introduced to my 2 children he went on vacation the 7th-18th and invited me and my 2 children 1 being handicapped was not sure at first but decided if there was a time to find out if it is going to work now would be the time so we all went including his mother 2 wks in Myrtle Beech in a condo N E WAY got back and after spending that much time with someone you tend to develope emotions and feelings for them and so my children want to call him dad now which I've got mixed feelings about that and he calls every day He's no other man that I have ever picked out for myself and maybe that's why they didn't work He opens doors for me tries to help out as much as he can with my children he's considerate of my feelings a true gentleman Do they really exist Because I've never had the oppertunity to meet one so I don't know if it's real or all just a big fanticy