Sorry i was busy text

The sentence itself tells you very little. What matters is what the conversation looked like before she went quiet. If the last few exchanges had real back and forth, with her asking you things and adding detail, then the apology is probably sincere and the gap was a scheduling problem. If the thread had already slowed to one-word replies or she often let your questions hang, the apology is more likely a graceful exit or a way to reopen something she half wants.

Also look at what she did not say. She did not suggest meeting, did not ask about your week, and did not add a question of her own. People who want the conversation to continue usually leave a hook. Her message is neutral, which means your reply will set the tone more than hers did. Treat her apology as a status update rather than a request, and your reply should match that level of weight.

There are roughly three shapes a reply here can take. The first is the easy accept, which takes the apology lightly, says no harm done, and asks one simple question about her week. It works well when the earlier conversation was warm and you want to keep it going. A good draft of this is short, has one question she can answer in a sentence, and contains no reference to the gap beyond a word of acknowledgement.

The second is the open door, which says you noticed the quiet without making a thing of it and leaves a plan or topic she can pick up if she wants. It fits when you want to move toward meeting. It should contain something concrete she can say yes or no to, but it should not push for a date in the same message as the acknowledgement.

The third is the light close, which accepts the apology and signals you are fine either way. It works when the thread had faded and you are not sure she wants more. It should leave out any question and any hint of hurt. Drafts that feel right for this shape are almost too brief, which is the point.

When you reply matters more than people expect. A message that arrives at a normal hour, within a day of hers, reads as relaxed. The same message at midnight or a few hours after she texted reads as eager, and eagerness is the thing most likely to make a soft apology feel like pressure. Give it the same window you would give any other text in the thread.

If she replies warmly, you can keep going at her pace. If she answers with one word or nothing, leave it. A second text in the next day or two is only worth sending if it contains something new, like a link, a photo, or a plan you actually have. Stacking "hey?" messages turns a neutral thread into a chase. If three or four days pass with no reply to a message that asked her something, the conversation has ended for now, and the kind move is to let it rest rather than send a last attempt.