Cougar - symbolizes wild beauty, power, grace, and raw emotion. It often refers to feminine power and aggression. This could be a representation of someone you don't entirely trust,...(ie: your friend, your husband's ex-wife, etc) Or could be an extreme emotion you, yourself, are feeling...(anger, jealousy, possesiveness, or anxiety)
Alternatively, it also indicates a feeling of lurking 'danger'.

Female friend - that it is a 'known' friend, represents your actual feelings about this friend. What her characteristics are. That you said, "but is not necessarily someone I would consider a very loyal friend." represents you feeling dishonesty, or deceit, somewhere in your waking life.

Houses in dreams generally represents you, the dreamer :
Livingroom - symbolizes personal leisure, space to 'be yourself', and day-to-day life.
Kitchen - the heart of the house, and for most families, the kitchen is a place of warmth and nourishment (emotional as well as physical). Also symbolizes the 'mother role'..( pride in the ability, or a wish for the ability, to create a home and contribute something valuable to the family).
As a symbol for your emotional life, this is a place where you can be creative.
The kitchen almost always reflects the need to work through your current situation using your heart rather than your head.

Table - suggests assimilation, or "coming together" of varying parts of your personality. It could be that you are working on becoming aware of your own multi-dimensional nature and are attempting to become a more harmonious individual.
Also, the table represents nourishment, friendship, unity, and refers to your social and family connections.
It could represent emotionally charged events, such as a family dinner, contractual negotiations, or pleasant/unpleasant meetings.

The cougar being under the table would suggest you are feeling an underlying deceit about something. Something you feel could disrupt the harmony within your home and family.

Attacking husband - To dream that you or someone you love is being attacked by an animal, is a warning to be careful with those around you. Take notice on who you know in your waking like that shares and exhibits the same qualities of the animal that attacked you in your dream.

Calling 911 - suggests you feel the need for intervention or outside help....support from friends, or family not within your household.

Lip - signifies sensuality, sex, love, and romance. They are also seen as a means of communication as in the familiar phrase "read my lips". 
That he was injured on his lip, suggests you feel he may have said something wrong, or wasn't entirely honest with you about something.
____________________________________

Do you feel a threat of some sort coming from his ex-wife?
Did a discussion come up about your 'not-so-loyal' friend?
Has something happened which has arroused some negative suspicions?
Do you feel that your husband is keeping something from you, or has he said something that hurt your feelings?
Have you been feeling that you need some guidance from a friend or family member?


I hope this gives you something to go on....best wishes!

You're welcome. Glad I could help. I don't like it when I have to point out a negativity, or but it's what your dream is saying.  I hope you can solve your troubles.
Sweet dreams, hugs & happy wishes.