my crush has a girlfriend... help 😳

I really really like this boy... but he has a gf 😕 he's so nice to me and we have been good friends for a while now but things are escalating and I'm getting feelings for him and feel he is too. He texts me constantly and tells me in a roundabout way that he likes me but he still goes out with his gf. He tells me he's unhappy in the relationship, is it wrong of me to still text him feeling the way I do about him and the comments he makes to me ??? Please help me ladiessss 💕
Update: he recently had a big fallout with his gf and they haven't spoke in days if not a week and asked me to come out like he always has but this time I went, we never kissed or anything but he was just hugging me and keeping me warm and it was amazing, I really really like him but I'm not sure he will ever break up with his gf, how do I get over him? Xx