In order to improve the user’s experience, we decided to remove the profile cards after you have Liked or sent a Hello ⭐ to another user. You can see those profiles again in your Timeline if you cross paths with them again.
Moreover, it is not because a profile disappears from the Timeline that yours will also disappear from other users’ Timelines, as opposed to the cross button which allows you not to see that person again in your Timeline.
This means that your profile will not disappear from the other user’s Timeline. You will still be visible to them. The ultimate goal is to “clean” your Timeline for you to focus on the new happners/profiles you will cross paths with.
You can always see a list of your new Crushes in the “Messages” section.