Ok
My spouse studies over there
What could be the reason ?
Isn't it straight forward for spouses ??
It's pretty common and usual to be refused a visa (TRV or a SOWP) if the spouse is a Canadian resident especially if an applicant cannot demonstrate exceptionally strong ties to his/her home country.
You have not provided any details about your personal and professional situations. However, you could expect the typical refusal reasons such as Travel History, Family ties to Canada are stronger than those to your home country, Employment prospect, etc