Respect for self and others,a very good sesne of humuor,being open and easily reachable in terms of communication,are all far more essential than the physical attributes of a partner ,in my opinion.Allowing time and room for breathing space is also very important in any relationship.Looks dissapear as time goes by ,personality and character that make up an individual don't.

Maintain a very healthy open and honest relationship with your daughter ,as well as your ex. The fact that your daughter spends more time with you should be a blessings,becasue it now gives you the chance to raise her not only accordingly,but in a way that you feel would be appropriate for her to be able to make well informed decisions,as she grows up and experiences new things and changes outsdie your realm of control.
For her sake you and ex need to be civil at least,love is what we alll need really ,love and overstanding:-)

I dropped by to say hi,I just joined and hope to meet some nice ladies here.
Keep smiling:-)