Start to hve mix fellings?

ok me and my girlfriend have been dating for 3 months know. we text, im and call each other. but for the past 2 weeks know she says she wats to see me but when we make plans to see each other she text me and says sorry i am with my friend. or she will say i want to hang out with my family. and i know that family comes first and i respect that. but i wonder why she keeps making excuses to not see me. right know i am starting to have mix felling that she stills love me. ( ops i for got to mention that she says she misses and loves me all the time and i say it back)