<human>: Can you condense the text into three sentences or less?

This will be long so I apologize in advance. I'm just not sure what to do and could use some advice.

My co-worker and I have always had a very fun, flirty working relationship. We began to text after work hours a few weeks ago and discussed us dating. He knows my whole family. Everyone approved of this relationship even our boss. He is someone that I care a lot about and could possibly be "the one".

Then out of nowhere he began to ignore my texts, ignore me at work, give me short answers when I ask him a work related question and generally act like he hates me and treats me like shit. Completely threw me off as I wasn't sure where this was all coming from. I have asked what is going on and he just says nothing. 

Another co-worker mentioned that he joined a dating site and saw me on there. (My profile is old, I no longer use it, and had forgotten all about it.) I think that he may have told my love interest this and that is what is causing his reaction to me.

I don't think he would believe me if I told him that I don't use the online profile because he has trust issues from a previous relationship that I had been working very hard to get him past so we could have a trusting relationship.

Now I am hurt and have no idea what to do. I'm not even sure the dating profile is the problem but it is the only thing I can think of. Should I even try to talk to him about it or just let it go and move on?
<bot>: Co-worker/love interest is ignoring me and acts like he hates me possibly because of an old online dating profile.