Should I 30F tell him 35?

So I (30F) have been into this guy (35) for a while. My friends would tell me him was into me, going back to our text messages he would start convo out of nowhere asking to do lunch, he would randomly ask to hand out. He asked to be my plus one for my work Christmas party. But in my head he saw me as just a friend and perhaps his other friends were busy. I always thought he would never be into me, I short and a plus size. Since I’ve known him, I have seen him with thinner much more attractive women that like to wear makeup, go out, party. Where I am the opposite, I am a homebody, I like to go the museum, go to food events, I am not big on party or night clubs or raves. So I never let myself explore this. I’ve seen him on his IG he is with someone recently like maybe a month ago. I am sad and hurt more at myself for not expressing myself. I suppressed my feelings for fear of rejection. My friends have told me to let him know how I felt so I can move on. But would that be a good idea to tell him how I have felt for about 6 months?

Should I 30F tell him 35?
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