Lithuanian man blows hot then cold?

Hi, I work with a Lithuanian man, I like him but he comes across as a bit of a cave man, I think he likes me but I can't be sure, I'm a straight forward kinda girl , if I like a man I let them know, I do verbally flirt and have always been that way, I never wait to be pursued I am usually the pursuer so to speak, but I can't figure this man out, I'm not sure if he really thinks I like him or if I'm joking as I tell him he has lovely arm muscles and have made other odd comments that I think he's nice, anyway, well he always wore the same combats to work same black pair with different t shirts everyday then suddenly over night he changed his dress sense and started wearing jeans into work smartish ones and I cud see he was watching me now and again and I too would look at him, I would always smile and as him how he was and I thought we were getting closer and I was sure his change of appearance was to impress me but I'm not sure now because today at work I had to go ask him to get me something up high on his work lift , this is not unusual I have to ask him everyday to get something I can't reach and I give him the paper work with the location written down with where I need him to go, well today I gave him the paper work and wrote on it PLEASE CUD YOU GET ME ... THANK YOU I added a smiley face then a X meaning a kiss, he went to get what I needed but returned looking straight faced and very red faced and hardly spoke a word to me after that for rest of the day, I meant NO harm just wanted him to take it lighthearted but know I liked him a lot, now I don't know if I shed apologist about it or say nothing, I felt quite hurt that he didn't at least find it soft, I don't know much about Lithuanian men apart from they are not touchy feely and can be bit aggressive in their tone sometimes but not intentionally. I really like him but am I wasting my time, did I scare him or is he just not interested I don't know. anyone know ? please
Lithuanian man blows hot then cold?
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