Is it fine to message again after a week of silence?

A week is a long time in an app conversation, but it's also a normal amount of time for someone to go quiet without meaning anything by it. Look at what came right before the silence. If they were the one keeping things going, asking questions or proposing a plan, the drop-off is more likely a lull in their life than a loss of interest. If you were doing most of the work, or the last exchange was short and flat, treat the silence as a stronger signal.

Also look at how they handled the plan. Vague replies like "let's see," "soon," or "I'll message you" often mean the idea is loose. A specific yes followed by silence is more likely a timing problem. Your follow-up should match that read. You're trying to pick up a thread that still has some life in it, not revive one they dropped on purpose.

A good follow-up does two things. It shows you're still interested without making the silence the subject, and it hands them something simple to respond to. Reference one specific thing from your earlier chat, like the Lisbon trip, and ask a light question or offer one concrete option. Keep it to a line or two. The point is to make replying feel easy, so they don't have to think about the week they missed.

Avoid anything that asks them to account for the gap. You don't need to say you noticed they went quiet, and you don't need to joke about it in a way that points at it. The silence is already obvious. Mentioning it puts them on the defensive. Your job is to make the next message feel like a normal continuation, so the easiest response is just to answer.

Timing is simple. Send your one follow-up in the daytime, when people are most likely to check their phones, not late at night when it can read as needy. Give it a day or two before deciding anything. If they reply, keep the energy light and move toward a specific plan. If they don't, resist the urge to send a second message. A second unanswered text almost always makes the silence harder to walk back.

If nothing comes back after one follow-up, stop. You can leave the conversation where it is, or send one very short line that makes it easy for them to bow out, but don't keep the thread alive with more attempts. A week of silence followed by one reply and then more silence is a clear answer. Moving on is the respectful choice, and it leaves the door open if they come back on their own.