Is being too nice bad?

Okay so I 19 M some talking with a new friend i meet few days ago and he told me bro you are too nice. You never swear or anything. I was like ohh thankyou bro. Then he said you never find a date. I was like: -_- I asked him why he said that 3-4 then he told me: Well people don't like nice guys , they aren't meant for dating. And I'll probably get directly married T-T Is being too nice actually that bad ?