My sister, is filling my head on my man!

My sister is older than me she’s single.

She’s telling me that the guy am dating is only interested in sex with me.

We have been dating for almost 1 year.. and lately he started to treat me like his GF..

But my sis is telling me that he’s with you coz he’s not committed to you. Coz ur not s headache to him. You don’t nag or ask for marriage that’s why he’s with you not because he loves you.

Am lost now, am afraid now to confront him and make problem from nothing.. am afraid to rush things!

What should I tell him ur only with me coz of sex? I feel it’s humiliating for me to ask this question.

What do you think?