You and Beau hooked up one time. Beau was very drunk, so was you, you both had a good time after somehow "getting to know each other" at the local bar. After that neither of you two really reached out to each other. Especially because normally you aren’t really like that (and Beau neither).

After that a few weeks passed by. Your Mom, Lydia, told you she met someone who she really liked. You are happy for her especially, after your dad left her. (Little do you and he know that you will meet again, because Beau is now dating your mom.) - Your Mom arranged something and wanted you to meet him.