be there for (one)
To provide or be available to provide support to one. I promised to be there for my friend Ann after her mother died. You were always there for us, Mom, even when we didn't appreciate it.
be there for someone
SPOKENCOMMON If you are there for someone, you are ready to listen to their problems and to help and support them. Jimmy has always been a good friend to me and always been there for me with bits of advice. I said, `I'll be there for you', which is all he wanted really.
be there for someone
be available to provide support or comfort for someone, especially at a time of adversity. 1998 Spectator Elegant, determined and intelligent, she was the perfect tycoon's wife: always there for her husband and ready to defend him.