Please Advice-how To Proceed

Hello! I am 23 years old. I had an unsuccessful 7 years. relationship, several months have passed since our separation. Now I feel afraid to start a new relationship and I feel like a teenager. I'll tell you what happened to me soon. I travel by bus every day. The owner of the company drives exactly him and I recently noticed that he is interested in me, but after everything that happened I don't know if I'm mistaken. He used to say hello to me and that's it, but now he talks to me, asks me what I'm doing, if it's warm on the bus, etc. The other day I get on the bus and pay, and he tells me to sit down and shows me the place behind it. Then there was some time and I went down to smoke a cigarette and talked to a girl, and he walked past me and touched my shoulder. I was shocked and did not react at all. Let me clarify that he is 26-27 years old. But he recently took over their family business. He really is a very nice boy, but I'm afraid to retaliate in some way so that he doesn't get burned again. The boy is from my city and we have known each other since we were little, but we were only healthy. I also can't judge whether these are some jokes or some kind of friendship. What do you think? And as far as I know he has a boyfriend, but I haven't seen them and it may not be true. Do you think he sympathizes with me and should I reciprocate? However, having a failed relationship does not mean not starting another one. Thanks. I look forward to your feedback but I haven't seen them and it may not be true. Do you think he sympathizes with me and should I reciprocate? However, having a failed relationship does not mean not starting another one. Thanks. I look forward to your feedback but I haven't seen them and it may not be true. Do you think he sympathizes with me and should I reciprocate? However, having a failed relationship does not mean not starting another one. Thanks. I look forward to your feedback