ESTJ dating ISTP

[jlw]

So I've been dating A male ISTP for over two years. We both have our own places. Our relationship is a lot of fun, we enjoy each other's conversation allow each other to have freedom and space. Im extremely in tune to what the ISTP is all about and I've taken my time to understand that personality. My question is this, ww have our own place lots of times it works out where I just stay at his place all weekend because it's easier. But we never discussed where I go during the week. So I often just leave him a note and let him know I'm back at my place. I've often brought this up for discussion but we never discuss it it is always left up in the air. For example we ended up getting a puppy or I guess I should say he got a puppy we picked it out together. Monday rolls around and I said I guess I'll go back to my place for the week he did not say anything, 8 o'clock at night I get a text message hey you need to come back here and help sit the puppy. So I ended up staying all week to help with the puppy. Now it's Monday again and I figured I'll go back to my place tonight so I did m nothings been said. My question or questions is that this is going on for two years I know ISTP do not like commitments, they take it day by day, I'm just not sure what he's thinking about this and I've asked him a direct question to get a direct answer and I get nothing. Not sure what he's thinking. He is definitely an I STP in every way he gives gifts, he's very spontaneous hard-working extremely observant, hears everything for exactly what the person says that is why I have been very specific in my question to him.