It was never a numbers game for me. I just never got a lot of replies, and I only contacted people I was really interested in and had something that resonated in their profile. That meant long dry periods.
I endorse having multiple first dates in the same week. I did that once and it helped me from making too much of one date/interaction. That said, I could never do that for a sustained period of time, and it was bad form for him to tell you about it.
I used to say, I am the only common element in all my failed relationships. And it really did suck that time the gal who didn't want to be monogamous with me ended up meeting a guy she married shortly after we broke up. Yeah. Take care of yourself.