Is she leaving me or am i just being stupid?

My Other half went on Holiday last week and i began to miss her a lot so i called and text-ed her allot and i Will accept i may be been very clingy overly clingy i apologised to her but now that she is back she is ignoring allot of my calls and texts she blanks me on facebook and claim i am catching her at the wrong time Aka she has to go out just as i call or start a conversation we have been dating for 11 months this august