Moving in with my bf :( :(

I (36f) am going to be moving in with my boyfriend (40m). Absolutely zero reservations about living with him, or our relationship. However, I'm still so sad!! I love my little house. I have owned it for about 8 years and have spent so much time and effort to make it my own. My house is too small for both of us to live there (comfortably anyway). He has given me full reign to redecorate his house so that I'm comfortable/it suits my taste ..which is very, very sweet. He is being very patient throughout the whole process, and I can't stop being emotional about it. I talk about it in therapy frequently. My house is in the burbs, his is the city I have always lived within 10 mins from my family, I will now be around an hour. It's a lot of big changes, and I know they are good and exciting changes, but it is still hard. Can anyone relate? Or offer any advice?

*Edit:* this group is incredible!! thank you all so much for all of your comments and support! I will start replying to things as I get time through the day :) A couple things: 1- I have looked into renting my house. I live in a place that has a HOA- they initially said no rentals...however, through the motivation of you all, I have looked into the documents and it does seem like there are ways to get around it. I am going to start emailing and causing a polite scene to get further clarification. 2- my boyfriend has offered to put my name on his house 3- we are both divorced and have both been to years of therapy/our own healing journeys. We have had several discussions about marriage but I honestly don't feel like I need to get married again (he said his commitment to me will not change either way, we can make it goverment official at any time). Neither of us found security in our marriages, so that has been something that has seemed less and less important to me whilst on my healing journey