Sounds like the only fly in the ointment has been the negative memories your old home has stirred up. Maybe this trip can be the beginning of sowing some new memories in that home?
Kudos to Matt for sticking to his faith and practicing forgiveness. Likewise kudos to you. Si doesn't have to become a big part of your life, but it probably feels like less of a burden to be able to talk with her in a relatively warm and friendly manner.
Glad that pneumonia is starting to recede.
Love means never having to say, "Put down that meat cleaver!"