I think i have a crush on my best friend

please i need help someone tell me if im reading too much into this. So me and my friend have been friends for around a year now, and id consider her my best friend. a while ago she came out to me as bi but now she thinks that she is a lesbian. she told me that she used to like me and i know i used to like her. she described her type as exactly me (white, curly blonde hair, brown/hazel eyes) and my type is basically exactly her too. me and her have kissed before a lot but recently when we do i actually feel something and get nervous. we were watching heated rivalry together and we were cuddling and i was so nervou, i was bright red and blushing and she held my hand. i think about her a lot and while we were hanging out she said that she is fem4fem and im fem4fem too. i feel like she keeps hinting at liking me, she always holds me hand or touches me. the only problem is ive liked this one guy for a yea, ill call him deer. so deer and me have been talking for a few months now and ive had a massive crush on him but i don't know if i even like him anymore. i genuinely am scared that i might like my best friend, and i think she likes me. whenever i bring up deer she always gets really upset and asks me to stop talking to him and always says tha she would be better for me. please someone tell me if im reading too far into this or if she does like me.