pressure
Ya know, sexy lady, if I didn't know better, I'd think you were the woman I broke up with today. I met her on New Year's Eve, we went out a couple of times, I didn't call her on Monday, & got deluged with emails & phone messages asking what the problem was....I wasn't aware we were supposed to talk every day...
Anyway, in regard to your question, you must have been tipped off by him if you're even asking this question. Give him the space he wants, but subtly remind him of the advantages of a committed relationship with you. (Added emphasis on "subtly")
Good luck,
Bobzilla