I was with this younger guy a couple of times when out a party with my friends, and I would always text him but he would never respond back, so I decided to call him and he picked up the phone and I was just chatting with him and I asked him if I scared him, because I am a pretty straight forward person that knows what I want and older with more experience and he is absolutely the opposite and he has had maybe one or two girlfriends, I am keeping a low profile because I feel really bad.
Well you may have scared him it depends on how much younger he is. or he may just may be shy. you should give him a little time to adjust to a older women hitting on him.
More than Likely you intimidate him somewhat. Being straightforward like that is an awesome personality trait but you need to remember that not all guys are as welcome to it as you may like. If you want to get him interested again appeal to his senses, if you work with him make him smell your new perfume. Send him a sweet text or something along those lines. Girls aren't the only ones who like romance. Send him a small token or gift of some kind, some way for him to abruptly get the hint that You want him and he should want you.