<human>: I work at a public library with a slightly slow guy who seems unusually interested in me. For instance, I received a huge bouquet of roses as big as my fists for my birthday a month in advance. He has my schedule memorized. I recently got engaged, and he gave me a congratulations card with a hundred dollar bill inside. We have never socialized outside of work and I will probably not invite him to the wedding. I don't feel comfortable accepting the money as a gift but I don't want to offend or embarrass him by giving it back. We've worked together for only about 8 months. I haven't even gotten engagement cards from family members. What should I do??

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<bot>: My co-worker with a crush on me (I assume) gave me a $100 as an engagement present and I don't feel comfortable accepting it but don't know if it's worse to return it.