Hi friend

To be really honest, people that are overly nice generally rub me the wrong way too. So I don't know if it's really the case here but perhaps you are expressing yourself too strong in a way that most persons just feel is awkward. Being too nice can give people this feeling for sure. I know it sucks if you are really being yourself but IF it's seems to be that you could try to tone the overly nice expressions down. Not saying to change your whole attitude of course, being nice is a good thing.