to answer your question she is a bad one she may be struggleing herself i dont know but she obvioulsy has mental issues to give you away, she simply couldnt cope with looking after you, y? i do not know, if this is affecting you then seek proffesional help, dont expect anything from your mother so if/when she lets you down it wont knock you so hard then if she DOES do something goods its a nice shock

She is a lost or confused mother (not necessarily "bad" as a person - just bad behavior) who has never been taught or shown responsibility/accountability to another person (or to herself) or being trustworthy. I don't know if you're getting the information about her wanting to be in your life through her (on the phone or computer) or through someone else but instead of "expecting" her to keep her word, I would let her know that if she doesn't do something that she said she is going to do or she doesn't show up at a specific time that she said she would, let her know before hand that you're just going to assume that she is not ready to be a responsible person to have a relationship with you. Let her know that how her inaction is stressful and hurtful to you and that you do not need that right now and when she is ready, really ready to connect with you, then you'll consider reciprocating. Please understand that how your mother is, in no way, personal. Whether you want to give her a chance or not is up to you but you really need to let go of pain that she may have caused you because it can drive you crazy and you'll be wasting your time instead of building on having a healthy outlook on life...and for something you have no control over! I've heard a saying recently that went something like: "Expect nothing and you'll never be disappointed".

She really isn't a mother. Technically, a biological one. You should lower your expectations of her and maintain the relationship you have with your uncle and hopefully your aunt who hopefully played that role in your life....... Does'nt mean you can't have a relationship with your B-mother.

Let her prove herself before you get to hopeful but be gracious and try to retain the relationship. As hard as it may be to accept she may have been (and be) doing the best that she can

don't judge her too quickly give her sometime to prove it...