Question
I have been keeping the three weeks seriously every year. I also go to Israel around this time every year and it feels strange that the time of year that I should be joyous that I am "home" I am supposed to be "mourning", but I do it every year even when it feels un natural and counter intuitive. This past year I opened up an old Tanach I found that was my father's when he was a kid, there was a place holder and the page was in Yecheszkel. It mentioned Tammuz and scolding benei Yisrael at the time for mourning tammuz, a false god. Now that we are almost in Tammuz, I keep thinking about what I read. I am about to go to Israel again and I feel so strange now that I learned about this avoda zara of mourning tammuz. I learned that Sefardi customs differ with regard to the 3 weeks. Why do customs differ when it comes to Tammuz mourning practices? I am Ashkenazi, but can I follow the customs of Sefardi when it comes to mourning at this time? My husband doesn't care and thinks I should do what I feel is right. Is it an aveira to take upon ourselves a Sefardi custom?

Question
In the city of Baltimore where we live, there is a street called Cathedral Street. It is part of the fastest route to my weekly appointments at University of Maryland Medical Center according to Google Maps. But my husband says it is forbidden to drive on Cathedral Street because of its name. Instead, he takes another street called Saint Paul Street. This takes several minutes longer. He insists this is acceptable because Saint Paul was Jewish. None of this makes sense to me and he has no rabbi backing him up on this. Even the orthodox receptionist in the office where we go thinks this is all crazy.