fiancé never asking me to do anything with him, thoughts?

Tara
Well long story short. My fiancé has been riding fourwheelers with my 2 cousins that's his two best friends, well I sat outside for an hour with Andrew (my fiancé) for them to get here so we can all go ride in our back yard. Well I get left twice by myself knowingly there is a side by side (two seater) and a huge as fourwheeler that will gladly seat 2 itself. Andrew is the only one who got to tag along while I got stuck here by myself. He never once asked me to go do anything with him or ride along. He just takes off knowing I was wanting to ride. He has done this twice to me now. I'm just so over feeling left out of everything. I've brought this to his attention many times and yet I still feel like he doesn't care. I'm just so over today. I literally wanna cry...