Need advice

My gf is really cold last night we sat on the porch together and she sat as far away as she could said she is figuring things out in her head I've been being patiant bUT sure there is another man and she is stringing me along at this point this has been going on for a week she still kisses me when she leaves and says love you we still sharing a bed... Today she was just sitting out on porch almost like she was avoiding being the house with me she came in then went upstairs I'm assuming to make a call then said she was going to her cousins gave me a kiss said love you and left...she has never left the room to talk to her cousin before I'm trying to give her space and time to think but it's hard to act like everything is ok when she has completely pushed me away it feels like and like she don't care about me...why not just leave me if you are that unhappy is she really confused or am I just stupid

I have talk to her she said she is confused in her head and do3snt know what she wants she just started acting this way out of the blue 4 months ago she said I drank to often so I quit...I told her I'm not a toy or a doormat she doesn't want to talk about it tho and gets upset and says I'm pushing her to leaving by trying to force her to talk about it she said I'm a good man and I treat her well she don't know why she is feeling this way...it's not you it's me speech but she hasn't broke up with me