All because he and change

Some time because some things change.I live in a town I was not brought up in due to my husbands job. I have lived here for 6 years and been in and out of work due to temping and with the resession unable to gain a permanent role so friends I have made in jobs I never stay that close too due to moving on, but still in touch. I have a best friend who I have known for 3 -4 years who also doesnt have many friends - so we are kinda like peas in a pod....BUT, I am beginning to get annoyed with her lately as I feel she just treats me like a lap dog - if she does not want to do anything that's fine, when I don't she sulks and she never txts me back for a day or two sometimes - becasue she said she forgot. She recently has lost weight having gone from a size 16 to a 10 - 12. I am still a size 16. She continuously goes on about her weight saying she has lost more weight when she knows this is an issue for me. We went shopping and she came out with comments like 'that sottero midgley dulce wedding dress makes you look even wider'...I was a bit like this sottero midgley jacinda wedding dress how rude. She is clearly jealous of me also because I have a house and a mortage and I go on holiday quite a bit and she lives in a council house, which is fine I have a big mortgage to pay off...soo it aint that glamourous. Also...if I talk about something to do with decorating or my hol im going on in a week all of which is just complete general chit chat she goes on about her weight again I think that she is trying to prove a point that at least she can be skinnier than me. She has been a good friend otherwise, the only two other things she has really hurt me with was 1. 2 weeks ago we were going to go out and she kept me waiting all day as she couldnt make her mind up to go as she was feeling run down and then last minute changed her mind and said she was not up to it now having me had a spray tan and my hair done, and on my wedding day she was a bridesmaid and she was late she was supposed to turn up at 9am and then I had to ring her and ask her where she was at 10.45am and she said I said come for anytime early morning I did, but then the day before I did say 9am. She is a little dippy - but at the same time I am beginning to think - is she treating me a bit rubbish? or am I being too sensitive? Gosh I need more mates LOL. I have mates up north but we all move on and its in a blue moon i see them. My last best friend from home turned to drugs so I havent seen her for 10 years. I am trying for a baby at the minute with my husband so I am hoping my social life will pick up once I become a mum.Life is to begin to change.