When you find something new you love, its normal to want to share. However, those that arent into it or dont understand it usually dont want to hear about it. The same thing happens with other people in other hobbies/passions.
The trick of it is just to not let it be an issue where you talk about it non stop and that is the only thing you are capable of talking about. With people who dont get it, then just dont talk about it or make it a big issue. Save the pole talk for the people who are in the know.
It happened to me when i started lifting weights and living a healthier lifestyle. I got a lot of comments on it from family and friends, but now years down the road, they have just accepted it as me. Its what I do and who I am. Added poling into the mix and everyone is like, oh ya know its just her fitness thing, shes into all that... and they go on. Wouldnt say ive lost any friends over it, but i also dont talk about it much, only as it comes up in conversation. I dont really talk about my goals or plans for what i want my body to look like or my plans for competing again. Someone may ask and i will answer, but i just dont really talk about it cause outside of the fitness world, no one understands or cares.
Took and aerial silks class yesterday, put up a post on FB about it and got some positive remarks. The rest just think i am crazy and into anything fitness so they arent worried :)
I would say dont forsake your friends just because they havent found the same passion as you. Now if they are negative or rude, then you have an issue, but try and be supportive of their habits too. Dont just expect every one to love and do what you do, just as you wont love and do what others do. I have a friend who is into running half and full marathons, i hate running that much but we have never clashed over the issue, and she has never hated on my love of anything else. I dont think you have to hide it, but just dont let it be an issue.