my roommate loves me

I've known my roommate for over a year now and the first time we met , I could tell he liked to see me . Over the past year , he has declared his love and has bought me food and gifts for my birthday/Christmas . I told him that I have a boyfriend and I don't want to ruin the friendship . He is moving out and he is choosing a place close to me and he has asked to move in with him. He even told me he wants to marry me and get me pregnant and that he will never stop loving me. Should I get my boyfriend involved or just wait and see till he leaves ? I really like my roommate as a best friend but he always talks about us being a couple😞