Dear Pamar,
Hang in there - things will get better. YES its about Patience - if u really love her and want the family to be togther - u must give it a shot.U must detach from her adn do things more for you - so she sits up and take snote of changes. I know it shard - no one will come and fix things for us - we have to do it - if things work out - there is reward for all the hard work.Keep losing weight, eathealthy, change your clothes, hair etc - for you. Be very confident and fun around her - dont dspair - their affair is stupid and shallow - u are the better person. also plz think of people who have worst situation then u - sh estill under sam eroof - so dont lose that opportunty and time. Be honest - be firm with yor changes. You will be fine.