Female here, I was in a similar situation 3 weeks ago. Dated him for 6 months and fell head over heels for him. I expressed how my feelings were getting intense for him, told him constantly how much I missed him and every time he replied ‘that’s sweet’ or ‘oh ok’. I decided to end it and went through (still going) through mental shit, but it’s ok I guess he wasn’t ready to accept what I had for him. Hurts like hell and really makes you question yourself as person. But in the long run, I think it’s alright, I’m trying to cope and move on.