What do you think about my relationship with this professor?


I am working on the article (I am continuing the research that is related to the topic of my master thesis that I finished last year) and the professor who was my mentor when I was a student and I worked with him a lot in the past is helping me with the article. We get along pretty well, he is very nice and helpful and always takes enough time to help me.

Because I also have a regular job (I don't work at the faculty), it is sometimes hard for us to meet in person. At he beginning we always met at faculty but once it was harder for him to come to the faculty so he proposed I come to his home instead and since I know him good enough I went and it was completely normal, we sat at his home office table and discussed what need to be.
One another time I was very busy during the week but had time to meet during the weekend when faculty was closed so I said to him that we could have a zoom call during the weekend or we could also meet at my home (I suggested this because when I went to his home it was completely fine), to what he responded that it is fine by him as well and he can come to my home.
Since then he came to my home several times (in a few months) and it is always completely normal, pretty much the same as if we would meet in the office.

I am writing this because I want some other person's opinion on the situation as well. He is very nice person, also to other people and other students and since I know him quite a bit and feel comfortable with him and because he doesn't act unprofessional around me I don't have a problem if the situation is a little more personal at times (visits at home) and it actually makes working with him easier.
He is around 50 years old, has one grown up kid and not married.

Thank you!

What do you think about my relationship with this professor?
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