F1 is not everything so I understand that sometimes I have to sacrifice my love for it. My family generally understands and supports my addiction but sometimes they want me to help them in something during the commercial breaks or so. Of course, sometimes helping them takes a bit longer than originally planned.
If you feel you get interrupted too often then you should talk about that openly (I’ve done it a couple of times). I believe your friends, parents etc. will most likely accept that you could do a lot of exciting and / or necessary things together before / after the race but not in the middle of it.
An advice to those who have difficulties with making their girlfriends understand their passion: Get a boyfriend. Men are usually more keen on motorsports than women, ain’t they? If this strategy sounds too aggressive, then try to find a girl who’s into motorsports…