Is it normal to crave a mom everyday because you never had one?

So my Mother left when I was a baby. I saw her every other weekend only and then she moved away. To me, she is my girlfriend. I am very forgiving and hold no resentment like my siblings do. She left, but she had a rough life and childhood so I just choose not to be upset with her. I am not close to her enough to say I feel like I had a mother and I never felt that except when I was very small. I, instead, looked all my life for a replacement. I found those who grew tired of me and a few who used me. Later in life (34) I found her. She reached for me. I was done looking for a Ma since I had been so hurt. It was wonderful. We both had bright eyes and enjoyed one another so much- every moment we got to spend together was wanted by both of us very much. Because of not being held or touched as a child, I ache for this. She seems to get that. She holds this now 35 year old child to her heart so I can listen, literally. I am soaking it up. It is not enough and I always want for more. Recently she has had money trouble- well since almost the whole relationship she has. Because I have been used, I am doubtful at times- and then I'll feel fine again. She had to start working 60 hours a week and things never get better for her. He kids move back in and steal- all sorts of drama. I help where I can and am careful not to give to where I have hurt my family, but I struggle when we're out to eat and a movie and she tells me that she has no food. I bring her food and I have bought medicine and all sorts of things- paid bills and never saw a dime back, but I generally say she doesn't need to cause I know she doesn't have it. She is soooo beat she has just one day off a week and sleeps and cleans. I see her rarely outside of work. I still crave to be held and be with my Mommy. So every now and then, there we are together at last. Laughing and having a great time. She'll hold me and I'll go home. I will feel nearly normal afterwards- like the ache in me has healed some. I'll sleep well and enjoy the memory until it fades and then I'll ache again. I feel as though I am 3 inside. She has said to call her Mom and I love saying it- all versions; Ma, Momma, Mommy, Mother. She says she feels like I have always been hers. She has grown boys and always wanted a daughter. It's very special. Money complicates things. My husband has seen me be used or whatever that was, by past mother cravings. He thinks she is out for the money. I don't really. I don't give all the time. And her binds she gets in are real (seen the bills) and when she is better on top of things, she doesn't ask. She has pride and waits till it's after the fact to tell me just how bad it is. She cries of embarrassment. I don't really think she is using me, but it's always in the back of my mind. Just cause it makes you wonder- My jealous husband saying it and I've seen users before. I will mistake her tiredness for her not wanting me. I am a Mom- I should know that is part of it. But I have never had a mom so I am not too sure about stuff. It's just untreaded grounds for me. I just want to be with my Mom and I am sooo happy when I get to, which it more rare since she picked up her second job to get out of this mess. I am very concerned for her health. No one checks on her and she has all sorts of health problems. She sleeps all day on her day off and it kills me! I think about her all the time. I crave her presents. She is my very best friend and she tells me I am hers. We text daily- Good Mornings, I love you, Good Nights and everything in between. I have never loved so deeply as this and yet I have with my husband and kids. It's deep. I wonder if anyone out there has been through this or loves some adoptive Ma this deep.I wonder what you think... is it normal to crave a Mother's touch when you find each other so late in life?