I need advice

Tonight I’m going to see a “freind” that used to be my boyfriend of three years. My mom and dad both made me break up with him a long time ago due to different religions which is crazy to me and I’ve been talking to him secretly ever since. I want to walk over to his house tonight since my car is in the shop and I can’t drive. I’m 17 btw. I’ve never snuck out or anything and I really don’t feel like I’m doing something wrong. It’s not like we can have sex or anything. I’m definitely on my period and we’re both good kids. We’re both still virgins after dating for three years. I just think it’s not fair I can’t have a relationship with him. Not even a friendship because my mom doesn’t trust me.

The thing is, I have to walk 1.3 miles. I’m scared I’ll be all gross and sweaty. He’s walked over here and was all gross and sweaty and i felt bad for him. I just don’t wanna be nasty. How can I cool down when I walk? And what should I do to not sweat so much or get my clothes all wet.