Yes not much new to add, theres good advice from all other posts, except- if you've been going out 18 mths,why ask us now? ARE you thinking of taking it further, moving in maybe? Has the being apart during this pandemic made you both want to be together now (if youre allowed soon) in case we have another lockdown? If so, please dont rush into anything, just for that reason, it may end up a mistake- have you asked your man if your Daughter's behaviour bothers him at all? And yes i hate to say it, but the question from phloembundle did cross my mind too- (i cant help it,i have 3 beautiful daughters, and 4 beautiful GD's & i would want to protect them first& foremost) so its something to think about.DONT go accuse him though, just keep an eye out if they meet up. Or be wary of what she tells you if you do ask DD why she appears not to like him. It could just be that 'hes not her dad' so will have to get more used to him, over time. I presume as you dont live together,this wont have had to be a problem while we've had lockdown though?he wont have been 'popping round' at all will he? It may be that the 'break' from his visits while your son&daughter had you to themselves for a bit will have made things a bit better,as your DD will have had one on one time with you again? Be careful not to shut her out again once lockdowns over,because after all,it is NOT yet- dont forget we can still ONLY meet an extra person out in open spaces yet! (a chance for you to meet up alone maybe with your man,for a picnic?or a chat?) None of my older kids liked my ex hubby,and in the end they were right about him.often they know them better,as we can only see with 'rose coloured specs'- maybe not in your case,but just take things as slowly i'd say.