Is it weird to ask someone out after weeks of not talking?

Start with the last thing she sent before things went quiet. If she wrote something with energy, asked you a question, or referenced a plan, the silence was probably just life getting in the way. A busy month or a phone that got put away fits that pattern. If her last message was a one word reply to something you wrote, or she answered a plan with a vague maybe and then went dark, read the silence as an answer. You are not going to win a no by asking more clearly.

Check what you did last, too. If you sent the final message and it was a question she never touched, the ball has been in your court for weeks. That is fine to pick back up, but it changes the tone you should aim for. Acknowledge the quiet in one short clause, then move on. Dwelling on it turns a light restart into an apology.

The move is to make the ask specific enough that she can answer it in one line. A day, a rough time, and a place she can picture is enough. Skip the open question about whether she is free in general, since that makes her do the planning and gives her an easy way to let it slide. Keep any reference to the gap to a single clause that points forward. It should show you noticed time passed without reopening it.

Make the plan low commitment, like a drink or a walk, so saying yes costs her very little. Leave room for a different day or a different format. Someone who has gone quiet often needs a way out that doesn't feel rude, and a relaxed tone gives her one without you having to say so.

Send it when you are awake and not in the middle of a late night. A message at 2am reads as either drunk or intense, and she will react to the tone more than the content. Mid morning or early afternoon on a weekday is a safe window for most people.

Give it a day or two before anything else. If she replies warmly, you are set. If she says nothing, send one short follow-up a few days later that is lighter than the first, with a different option rather than a reminder of the original. After that, stop. A second follow-up with a guilt angle, or a third message asking whether she saw your last one, turns a quiet no into a clear one and makes you the person she has to manage.