It appears that your feelings for your friend of twenty years are deeper than perhaps you choose to acknowledge, or even realize yourself. We have all been there.
You need to first examine your true feelings for this person. Do you really just want this person to be a 'platonic friend' to have 'non-romantic' fun with, or are you secretly hoping that it will develop into a more serious long-term relationship? Is this person a 'secret long time crush'?
As stated above, we have all been there, and it is a good sign that you are seeking a neutral third party opinion, on 'Just Answer.'
First, it appears that your friend has given you an important signal when she requested that you are moving too quickly for her.
It appears that both of your lives are going through drastic 'transitional stages' in regard to your friend's divorce, as well as your own divorce situation.
Perhaps this would be a good time for you to slow down, and 'take one step at a time.'
Maybe in six months to a year from now, you can revisit the situation and ask your friend where things stand in regard to how she feels about you. (*In a non-confrontational manner.)
Perhaps in that time you may surprise yourself, and discover that your own feelings have changed for this person, or perhaps are different than you had initially thought.
At times, when people are experiencing 'important life changes' such as divorce, it can feel more comfortable emotionally to spend time with people we have known for a long time. Sometime, these individuals make us feel safe and secure in their presence. Perhaps emotionally, they bring us back to a time in our past when life
was happier and less complicated.
However, at present, it appears your friend has given you an indication that she may be feeling an 'array of emotions' as her life is going through a major change. This is normal. She may need some time to sort out her feelings and attempt to adjust to her new life as a divorced individual. You mentioned that she has a daughter. She may need this time to help her daughter become adjusted to the divorce. (Particularly if her child is still a minor.)
This time period may also provide you with the same opportunity to get your own life back in order, emotionally and perhaps financially. (Especially, if children are involved in your own situation, such as working out visitation, etc. Your comments do not indicate if there are kids involved in your own life. If there are children involved, this may also provide you with an opportunity to help them become adjusted to the new phase of their parents divorcing. Especially, if the child, or children, are still minors.)
It appears from your comments that your own divorce proceedings are still in the works.
In addition, perhaps you may consider seeking 'professional counseling.' Seeing a therapist may help you in this regard, especially since it appears that your life is going through a major change. Perhaps your 'primary physician', or a 'referral service' at a nearby hospital, or healthcare facility, would be able to recommend a mental heath professional. (Such as a counselor, therapist, psychologist, etc..).
If financial affordability is an issue, please remember to mention this when seeking a referral. This may help you find a competent 'mental heath professional' who will charge an affordable fee.
Also, perhaps a 'divorce support group' in your area, would be helpful to you. This
could provide you with an opportunity to talk with other people who are currently experiencing a similar situation as you.
Good luck, and remember, you are not the only person in the world who is experiencing such a situation.
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