How did you know you were in love?

I’m so conflicted and confused. I’m in a situation with this guy who has fallen for me when everyone thought I’d fall for him first but it just hasn’t happened. He’s an amazing guy, physically perfect, great personality, does so much for me and I’d love to settle down with him but I just don’t feel anything as of yet and I’m not sure why?

Also, it’s been 6 months now, we’re not officially together for reasons I’d rather not disclose (my choice not his). If I’m not feeling anything at 6 months will I ever feel it?