Queen

My boyfriend got weed from his ex girlfriend and didn’t tell me about it he said he thought it wasn’t a big deal because it was just about getting weed . I found out by going through his phone and asked him who she was and he told me she was an ex. He told me they didn’t do anything. Should I trust him or is that a red flag? 

I was checking my old profile to see if my ex had messaged me, I guess I was curious but at same time it’s like I wanted him to message me or something, I know I wouldn’t message him back because I wouldn’t want to hurt my boyfriend but should I still tell him I checked? 

We were at a wedding and I was joking around with my boyfriend... a cute guy was at the wedding and I was joking with my boyfriend but wanted to impress the guy by being funny and now feeling bad for trying to get attention. Should I tell my boyfriend?