Should I feel some type of way? Being irrational?

My boyfriend, who has given up drugs and smoking weed, (after fights, lies, and drama about his drug use) says he doesn’t miss doing it. That he doesn’t miss smoking. I don’t believe him.

I see he’s commented and liked his old friends post saying he ‘found it in 0.2 seconds and to call him “dope dog.”

And then this (he’s nick.)

And then he started just texting an old friend who he used to do drugs with and supposedly stopped hanging out with because they always got into trouble. They did more than smoke weed together (coke, lsd,etc.) They used to steal, been in jail for a night, trouble with cops, parties.

It just makes me wonder if he’s lying to me about him missing all that? If he’s just telling me what I want to hear?

He’s also been very odd with keeping his phone to himself, making sure the screen isn’t really in my eyesight, which he usually doesn’t do. He also takes it with my everywhere he goes, which he never really does either. And the last time he was keeping his phone so close to him I found out he was trying to do coke behind my back. It didn’t happen because he couldn’t find anyone selling it, but he had it planned for days and was waiting for me to leave on vacation with my family. We almost broke up because of it.

Anytime I ask him about him smoking or his past drug use, his old friends, or anything about his past, he becomes very closed off and he automatically seems annoyed with me. He never wants to talk about his past or anything with me. I hardly ever ask anymore because it sometimes turned into a fight.

Anyway, I’m afraid he’s hiding something again. With these posts and stuff, the talking to his old druggy friend. It just makes me feel nervous and I don’t know how to ask him about it? The only reason I even know about the Facebook stuff is because I saw him google that picture and I caught a glimpse of his friends name. Then I saw him close that one google tab and he left up the rest. I guess just in case I saw it?

Am I being irrational? How do I even go about asking him about all this? It’s hard to talk to him about these kinds of topics, so I’m worried he’ll just ignore me and get angry for feeling this way. :/

Our 2 year anniversary is in February and we’re 22 and 24.