Seen him today

So I got with this guy and we are engaged...before him I was living with a guy and also breaking up with another one..so the guy I was living with became my muse...he saved me and helped me move on and I’ll forever be grateful! He got my mind right! And it was just to early for me to be with him and now I feel like I passed him up 😭he understood me and always knew how to make me smile! So level headed a go getter when it came to me...anyway I seen him today at the park (we both had our kids, he was with some girl) I was with my man and he came by us passing us up to get to his car and said “y’all smoking some gas” we didn’t respond ( soon as I seen him I told my man that that was someone I used to talk to) so then he goes back towards the girl and doubles back like he forgot something and comes back and says “I sold to you one time right” I didn’t respond,it was awkward for a minute then he said “ I got some of you wanna-“ before he was done my bf said “ nah we good” I feel like I did the right thing and respected my man and didn’t let him look stupid but tbh I prob would be better off “understanding wise” with the other guy cause my bf doesn’t understand shit I also know this guy well and he would never do something like this..he the type to just let things be ...but he was so bold and made excuses for us to smoke with him it was weird of him..definitely out of his character 🤦🏽‍♀️😒RANT OVER