Is accepting staying friends after a rejection actually mature or just pathetic?

I (f30) as in a situationship with mi neighbor(M29), he lives next-door, for about 3 months, he was very consistent talking everyday, opening up about the past, gave him space and didn't rush anything, cooked for him and spent quality time. Confessed I was in love 3 weeks ago bc he was kind of detaching and maybe made him overwhelmed telling him out of the blue but he said he never considered me for a relationship.

He tried to stay friends (he made my dream come true and made a barbecue just for me) he still comes to have coffee every other day but on valentines he told me he was sad over his ex moving on with other man. He asked me to hang out with him and a friend and made fun of all people in love.

Now he injured his arm and asked me to go to the hospital with him even when I can't drive, asked me to put ice on him till past midnight and made plans for cooking together, but never kissed or touched me again.

I can't accept platonic friendship bc makes me feel undesirable and pathetic. Rather stay as fuck buddies than this bff treatment, I feel SO ashamed and rejected I don't know how mature is that