The relationship you have with Megan's will always change probably in ways you can't imagine today. The relationship I have with my alkie son is beyond what I could have imagined 3 mos. ago. Now I know not to worry about any given stage as things do change for the good not just the bad. She loves you and as she ages will find different ways to demonstrate that. Hopefully, the bridge is there to keep contact on a regular basis now. I am happy for you that you had a visit.
Unlike my son,I have always been a high achieving accomplished person. But I remind myself that when I was in my 20s + 30s I was very busy and self-absorbed with my own life, loves, child, career, etc.
I didn't have a whole lot of time for my mom. Now I have constant contact. I know that the relationship with my son will evolve too.