It’s kinder to both yourself and him to not try to force something that isn’t there. I just ended a six-month relationship with someone who was wonderful... but just not for me. Everyone kept telling me that the attraction would come— that I just had to give it time— that I would eventually “feel it” because she treated me so well, she was smart, she was pretty, etc. No matter how great someone is, if there is no chemistry, it just won’t work. It feels much worse breaking up with someone 6 months in— just don’t go there if you aren’t interested. Otherwise you will be miserable and you will end up hurting the other person.