Pregnant with friends who can’t conceive

So I am 6 months pregnant Sunday, but a very close friend of mine has been having issues conceiving. She’s just found out she will have to go down the IVF route, but has shown very little interest or support to me, almost like she resents me for being pregnant. How have people tackled this before? I feel angry she can’t be happy for me despite me totally sympathising it must be hard for her. Thoughts of how to cope?