Is it bad if he hasn't talked about me to his friends

Three weeks in is completely different from three months in. In the first month, a lot of guys don't mention dating until they're sure it's going somewhere. By month two or three, silence starts to signal something real. He's either uncertain about the relationship, avoids talking about feelings in general, or is deliberately keeping you separate from his real life.

The length of time also tells you how much to read into it. Early. Don't spiral. A few months. You're allowed to wonder. The longer he goes without mentioning you, the more likely it's intentional or he doesn't see a future with you yet. Check the timeline first before you respond.

A good message names the pattern you've noticed without drama and asks a direct question that invites explanation. The move is to sound curious, not accusatory. You're not saying he's wrong. You're saying you noticed something and want to understand it.

The second job is to stay calm and direct. Long messages, repeated questions, or emotional language all push him toward justifying himself instead of actually thinking about what he's doing. Keep it short enough that he can answer easily. Give him room to tell you something real instead of just defending his behavior.

Send it once and then actually wait. Two or three days is normal. If he doesn't respond, that's information on its own. If he responds with something vague ("I'm private about this stuff"), that's also information, but you can push back with a follow-up.

Don't send multiple versions of the same question. Don't bring it up in person if he avoids it over text. If he gives you a straight answer about timing or uncertainty, trust it. If he keeps dodging, you have your answer: he doesn't want to talk about it, which usually means he's not thinking long-term. After one follow-up that goes unanswered, let it go and start deciding what you actually want to do with someone this evasive.