Proposed but wont move in with me because of his cat :-(

[feltpaperchains]

I have had a whirl -wind couple of weeks, my trusted, long term lodger has moved out and DP and I were discussing him moving in with me (as his house is way too small for us both.
He said that he couldn't leave his cat and we could wait for a house to come up on a safer road so that we can all be together (even though his neighbours offered to have the cat)
I was happy to wait(ish) and thought Id get another lodger.
Then a week later he proposed to me in a very beautiful way. I said yes because I love him and we had a cloud nine weekend/ week.
Today I started advertising for a lodger and started to feel really resentful that I have to go through the inconvenience and vulnerability of having a total stranger live in my house whilst he comfortably enjoys me going round his house all the time and nothing needs to change for him at all.
Am I being unreasonable to have switched from being really cool about it to really scared of trying to do my degree in the house with some stranger who may or may not be cool?

Both rent out your own places, rent somewhere new together and then if and when it goes wrong you still have your own places to go back too.

Think of it this way, is the big beautiful house worth being separated from your lovely new fiancee, when you can find your new beautiful home together as a sign of your future as husband and wife?

Apologies for the ickyness of that post, im stuffing from cabin fever with a spotty chicken pox ridden 6 year old.

Thank you every one, I feel relaxed with my decision.. Weve been giddy planning how we will fit stuff in/ make it nice for the time being, he said he appreciated what a sacrafise Im making and we will keep a look out for new places.
He bought my engagement ring today and his daughter is so excited (I have been badically living with them for a year anyway)
Youre right it was unwise of me to live beyond my means and together we're a great team!
Its been a shitty situation but with your help I feel Ive cone to the kindest solution for all of us!