What should I do?

It's the first time I have someone to tell everything, to rely on, a someone that invites me to go out and won't stop treating me so very nice even though I have nothing to give in exchange.

I'm immature emotionally, and it's been barely almost one month, but I've got too attached to her, and according to what she says so she feels about me. Thing is I don't like being so attached to someone and I'm afraid of appreciating her more or mistake my feelings and fall in love with her. 

She doesn't think of me like that, and I don't want to think of her that way neither, nor sexually, that's why I do my best not to stare at her body when she's looking nice, which is all the time.

I told her I want to stop talking for some time because we are talking too much, she has a child and is married (not legally). She initiates conversation and It makes me so uncomfortable because I feel like a nuisance and like she's doing it out of pity even if she says she loves being with me.

I just don't wanna mess up this relationship, the only person that's came into my life and help me so much after 21 years.

Am I doing the right thing? should I distance myself more? I'm sorry