A real guy or a gentleman would respect your decision if you don't want to be with them. It's better for them to know, then both of you to be emotionally invested in the relationship.
A guy who I met last year, through a mutual friend. We first talked on fb and I made it clear to him that I have no interest in having a boyfriend at the moment. The only reason I said that because he seem to desperate and I felt no chemistry, attractions or butterflies whatsoever.
Stupidly I went to meet him as a friend, but soon realised it was not a friend thing. It was a date and he was totally shy and standing over me. So I cut it short.
Long story short, I felt bad and still kept in contact when he messaged me. But he still insisted on taking me out to a very well known romantic building. So I decided to tell him that I don't want to get his hopes up and it's better for him to find someone who likes him and I don't want to waste our time and because he was really rude a dispensing controlling.
He did not take it well and seemed upset. He said he loved me after we met up like 3 times. Then he always texted me a few days later and acted like I never said anything which became so unbearable. He even waited for me after work and sent me anonymous chocolates at work.
He kept contacting me on all social media so I decided to block him and he sent me an audio begging me. Then he got really rude and starting sending me rude texts and making his friends send me fb messages asking if I were single.
I learned that he lied a lot to make me feel sorry for him. Since last May I stopped all contact and until this year in January I finally got the pressure off that I needed and hopefully he stops.
So I don't understand why he would not take no for an answer. He should have been happier that I did not string him along and waste our time.