Please read this and tell me your thoughts?

I am 28 from croatia, I met this 31 yr old guy and it was a blind date, we got close on the phone and really shared alot of stories feelings etc... we met, he was cute and really well maintainedm, took a ton of interest in me and really had alot of questions about my country and even was trying to learn my language. I went out a few days later met a guy at a bar, had and was in a realtionship. the 1st guy asked me out and after i blew him off he asked why ? I told him what happened. He sounded so hurt cause heis voice changed suddenly, he then thanked me for telling him and I never heard back from him. the other guy went bad, only based on and he does not take the interest in me the 1st guy did ...really hanging on everyword in conversation etc..I want to apologize and ask the 1st guy out but I have no idea what he will say, or react please tell me what you think ?