<human>: So I'm currently a university student in Montreal, Quebec and my apartment that I've been renting comes with it's own parking spot around the back of my building. As I live out of the province (in Ontario) I had no use for it as I don't have a car so last year I decided to rent out my parking spot to a fellow student.

A friend of mine said that her cousin (also another student) wanted to rent out my parking spot and we agreed that he would rent it out for $100 a month. I kept in touch with him through text message on a monthly basis and we kept trying to arrange for him to pay me for the parking spot, but because of our busy schedules we could never meet up (I was very lenient which was stupid of me, because I thought he was trustworthy, as he was related to my friend). 

Before the school year was over and I was leaving the city to go back home, I messaged him so he could finally pay me for renting out my parking spot for the year, totalling $700. He told me he was on vacation out of the city but he could e-transfer me the $700 in a few days when he had money in his account. I messaged him after a few days to find he blocked my number, was ignoring my calls, etc. I even got my friend to try and get a hold of him but she had no luck either. Now months later, my friend got in touch with him and he is saying he doesn't want to pay me because there were problems with the parking spot, and if I want my money I am going to have to sue him to get it. 

Essentially, because I was irresponsible and too trustworthy, I'm currently out $700 and I don't know what to do. Right now the only proof I have is the text messages between us which I have saved, and now I'm wondering if I were to take him to court, would it be sufficient enough to get my money back, or is it even worth going through the legal system?

Could you distill the essence of the text into 1-3 sentences?
<bot>: rented out my parking spot, renter is now refusing to pay me the $700 he owes me. Do I sue or forget it?