1: If the person you are looking for is your friend, and then you delete or blacken it, all you can see through QQ friend search is his last QQ signature displayed in your friend list, but you can't find the latest signature.

2. This is also related to personal settings. QQ can set whether to display its own information and whether it is online when searching. If others always can't see, you can't find it.

3. If you know that person's QQ number, you can enter the QQ space. The premise is that if that person's QQ signature is in sync with the mood in the QQ space, you can see it, if not, you can't see it.

Off-topic, the premise of two people's communication is trust, tolerance and support. .....

Your boyfriend is so distrustful, a bit like a stingy person ... you should consider your relationship and future.

good luck