history: My dad and I were talking about the past, just reminiscing a bit.  His mind is going quickly, I know I won't have many more conversations with him like this. My dad and I were talking about the past_comma_ just reminiscing a bit. I'm going to miss these times. I miss my dad.. been so long.   What did you guys talk about?
current: Mostly just my childhood and some of his.  His mind is going quickly, there won't be too many more conversations like that.
next: my mom had Alzheimers.. it sucks!