There are signs your ex still wants you back out there, but there is no way that you will see them now, even if they had neon lights around them.
The thing is, the argument that you and your ex had was probably very messy, as they usually are, and your emotions are still very fragile at the moment.
The hurt and anger that you are feeling right now far outweighs the loving feelings you had for your ex before the break up.
The deep love for your ex is still there, but at the moment it is buried below all the fury, pain, and resentment that is filling your heart and mind.
Because your ex is also probably feeling just as bad as you are right now, he/she will not be in the right frame of mind to leave signs out there that will show you that he/she is still interested in you.
So for the time being, don't even try to see signs your ex still want you back - it will be a total waste of time - they simply won't be there.
Give your emotions time to settle down first, and allow your ex to do the same.
After a little while, your ex will start to miss you and will begin to leave a trail of signs around that you will see immediately.
Until then though, just concentrate on healing yourself properly first.
When you are out with your friends somewhere and notice your ex standing at a distance watching you, then you will realize that this is one of the signs your ex still wants you back.
Another is when your friends start telling you things that your ex is saying about you - positive things.
One of the stronger signs your ex still wants you back is when he/she asks around whether you are still single or not.
Your ex is beginning to miss you a lot, and is worried that you become involved with someone else.
There is a good chance that your ex will tell your friends too, that he/she still loves you deeply.
The strongest of the signs your ex still wants you back is of course, when you get that first text message, call, or email from him/her.
Waiting around has become unbearable and your ex has decided to take the plunge and make direct contact with you.