I didn't go to school in Davis but would visit a girlfriend there in undergrad maybe once a month - I found it very friendly toward LGBT people. Maybe this is just the undergrad experience but it is almost easier to meet people (friends and partners) as a member of the LGBT community then not - at least you would have that shared experience of belonging to a community. I believe this is true also on the graduate level as my girlfriend had friends in some graduate programs who were very open about their sexuality - tons of groups to join and gay nights at local bars. I know its a small town in the central valley, but it is near the bay area in northern ca with liberal voting records.