Dating again

I have been separated from my baby father ex husband for a while now. I am starting to date again. I have my first date with a who I have been talking to for a month now. And we have been talking every day and seems like nothing wrong. And then today he hardly talked to me we have a date tomorrow and I asked him what time since I have school till 5. And he I guess hasn’t answered me been more then a normal length time of replying. And then I saw on Snapchat he is out and at a monster jam truck show. And he is on social media but hasn’t opened or replied. I have a really bad past with my ex who ignored me and made me believe things that weren’t true. And so this is giving me that kind of sence. What do I do? I am a single mom and am done playing games and being played. What would you do? Plz help advice?