Anne,
I will work on your dream and should have an analysis tomorrow afternoon {Florida time}. My first impression on one aspect of the dream {there are always at least two} is you desire to be accepted by your current bf's mother. A desire for completeness and improvements in the relationship with her {the dream language 'wreath out of leaves}. A deeper aspect would be addressing your own inner acceptance of some aspect of nurturing. Perhaps it is pointing to a compensation of 'nurturing' {mothers} that is/was/has been lacking with your own mother. This should come out in the analysis {or at least partially}.

Jerry

Age & Gender & Location {Required}: 67 Male Cocoa, Fl

Hi Jerry,

Thanks so much for your reply and for taking the time to analyse my dream. Very excited to read it.

Love Florida by the way, you're very lucky to be living there!

Anne,
No doubt the dream is addressing the relationship with your bf's mother. But I get the sense the dream is as much about nurturing aspects, being accepted by a mother. that begs the question, 'what was the relationship with your mother'? The importance of being accepted by his mother could be addressing both issues with the mother representing emotional/physical nourishment. Are there unresolved issues with nurturing aspects in your life {early life especially}, with your mother? All dreams have two or more meanings/applications and my sense is this dream is primarily about nourishment {mothers} and being accepted by your bf's mother may be a substitute for a mother's attention and nourishment, being accepted by both his mother and your own mother.

If there is not an issue with your mother then the 'other' application {besides the acceptance of his mother} then look to your mother's {and yours} relationship with your dad. The dream does reference an undeveloped masculine aspect {within you} and that could be due to the father relationship. If there was a negative relationship between your mother and father then the importance of being accepted by his mother would address the issue of relationships between male and female {as noted in at least one instance in the dream}. The 'mother-in-law' reference may be about 'legal' {law} or proper relationships. This dream language and amplified interpretation could point to this:
-tells about her son/likes and dislikes-undeveloped masculine aspects that are positive and negative
-about him being musical-developed harmonious integration of masculine aspects/creative aspects

Summary
As I stated, and what fits with your current life {emotional energies} is the relationship with your 'possible future' mother-in-law. The importance of 'being accepted' is paramount in your life. But with all dreams the deeper issues of your emotional life is being addressed as well. The mother-in-law would be symbolic of something other than your bf's mother. And often mothers represent emotional/physical nourishment, something that is vital in early life. If not there as a child then the likelihood is there will be a search for that nourishment throughout life. That could make it even more important there is acceptance by your bf's mother, she could be a substitute for your mother. Of course if your relationship with your mother was strong in 'all aspects' then there would be something else that his mother would represent {there may have been something lacking even if the relationship was 'OK'}.

Amplification if Images and Actions
Title: Mother-in-law
-unresolved issues related to inner/outer nurturing that needs resolution

-was supposed to fly somewhere-extending your latitude/actual experience
-bf going to be there-your masculine aspects/actual bf
-arrive few hours later-masculine aspects that are not completely developed
-time to spend/not sure what to do-coping with pressures/unsure about some aspect
-walking down street-progressing in life
-mother-in-law suddenly appears-new and unexpected visible aspects related to nurturing/actual experience
-start having a pleasant conversation-inner communication
-tells about her son/likes and dislikes-undeveloped masculine aspects that are positive and negative
-about him being musical-developed harmonious integration of masculine aspects/creative aspects
-how he plays guitar-playing with emotions
-him being hard working-working hard to live up to masculine expectations
-standing on stairs-higher level of understanding {aspects within yourself}
-makes wreath out of leaves-bonding and growth over time
-mentions something about marriage-union of opposing emotions
-gives her blessing-positive outlook of nurturing aspects
-we both run up stairs-issues that are competing to be understood/resolved
-asks me if i would like some food/I say yes-in need of emotional/physical nourishment
-we go to Starbucks-critical desirability/interest to nurturing aspects
-sharing a snack-allocation of collating nurturing
-happy she wants to share it with me-sharing of feminine/nurturing aspects
-feel included/closer to her-positive emotional aspects related to nurturing aspects

Jerry

Age & Gender & Location {Required}: 67 Male Cocoa, Fl