Love ?

Can someone fall in love in a matter of weeks? The guy with is 34 & I’m 22. He is the sweetest and most respectful guy I ever been with, he make sure I’m okay and goes as far is have study dates cause he knows how hard Stats is for me. He told me he loves me last night on our study date & I told him I loved him too. Yeah I know he older and 100% has his shit together unlike me. I just don’t know why I’m scared to make it official

Ps. We did have sex for the first time that night. He told me after he will marry me as soon as I choose the ring. Yup I’m def in love