I'm 41 and my fiancé is 46, have been together for 2 years. We both have kids from previous marriages - mine 10 & 15, his 20 & 22. All girls!! We are expecting our own surprise miracle baby (another girl!) in July! The older 2 don't live with us but we all have a good relationship. My fiancé is a widow - the girls lost their mum when they were 10 & 12. I've never tried to take place of their mum but have always supported them and helped them whenever they've come to me for help or advice.
His 20 year old came to me mid-January because she'd just found out she was pregnant. The father was a hookup and she'd just started seeing someone else, who didn't want to help bring up a child that wasn't his. She didn't have a job and was nowhere near settled so decided to have an abortion. I didn't try and sway her decision either way - it's her body, her life, her decision. I made sure she fully understood the decision she was making. I supported her throughout it, including sending her money to help support her with no job, whilst dealing with my pregnancy.
She's just announced to me that she's pregnant again with her now boyfriend's baby, not much longer than a month since her abortion. I didn't react with excitement she was expecting so she sent me a huge message saying I'm jealous and upset that she'll be taking the attention from me and my baby. That's absolutely not the case. I'm more concerned for her and her wellbeing - physically and mentally. She has been messaging an ex boyfriend and telling me she's still in love with him and is quite emotionally immature. She still has no job, not long had an abortion and has kind of put my emotions and stress levels to the test with supporting her through everything over the past couple of months.
AIBU to not be excited about all of this? Should I just put my concerns aside and continue to support her decisions?