Should I Be Straight And Say How I Feel?

Hello, I am writing here because I wanted an objective opinion and I think I can get it here. Here's how my story begins: It rarely happens to me, or rather, I rarely have time to get into relationships and honestly avoid commitment. But here comes a moment when you realize that you have met someone with whom you enjoy and want to try. At first, this colleague of mine, I didn't even notice him, was just a colleague with whom we were only hello, but after a few months, when he broke up with his girlfriend, we suddenly became closer, he started hugging me every time he saw me, we talked more, he became more and more friendly, one day I was indignant when I saw how he just noticed me from the bus and decided that nothing was stopping him from getting down to see me and then taking the bus again. Then I thought something: if there was anything wrong with me, I began to realize that maybe he was giving some signals. And so, until we had to separate for a few months due to work, during which time we kept in touch less and less, because the distance and the time difference were large. During this time I was very confused and realized that I had some feelings for him. I was looking forward to seeing you and clarifying this. And the day came when he suddenly called me to hear me, because he had come home the day before. I felt a storm of emotion, so glad to hear his voice. We saw each other the same day, but we were with colleagues, so I couldn't spend enough time with him. After a few days of stagnation, we started to maintain our friendship again, and lately more and more. We had the chance to go out to dinner on his initiative and then I had the opportunity to get to know him better, and I definitely liked him even more, we have a lot in common of character traits and interests.

All night he asked me questions about my exes, why I was now without a friend, how emotional he was and easily attached, he had a problem whose solution did not depend on him and this made him feel confused and unnatural for him. We met at work the next day, and his first words were when we will be able to see each other, we agreed and this meeting is coming these days. But no matter why he hasn't responded to my messages for two days and I don't know what to think, I'm very confused. And I would like advice on whether to share what I feel for him or to wait if he has any feelings to take the first step. Any advice and opinions will be useful to me.