Relationship Advice on spending

I am 19(M) , So basically we both are in first year of our clg , abhi tak jha bhi ghumne ya khane jate hai wha ka bill mai hi pay krta hu , mtlb mujhe meri gf ko bolne mai darr sa lgta hai ki tum kr do , or khudka male ego bich Mai ajata hai ki mere hote hue ye kyu pay kregi , but as an student mujhe Ghar se fixed amt ata hai , harr chiz ka pay krne se it affects me a lot later , so usko ye kese bolu ya smjhau ya realise krau ki she also need to pay at some place in herself ya toh travel ya fir food ka , will appreciate if it works for me !