I'm 5 months into a relationship BF turns up unannounced last night about 9.30pm DS1, DD and DS2 here. I've spent the day painting a ceiling, washing, cleaning, cooking and was sorting out paperwork. He arrived citing he left a charger here he needed. I greet him, chat whilst carrying on with my paperwork before having a bath and collapsing into bed with him. He mentions he has a problem to solve Sunday (at work unpaid) and now won't be over until next Thursday. He stays over, I go to sleep within seconds, truly tired. This morning he is gone by 7.30am and then texts me to say the charger thing was a pretext to see me and I almost completely ignored him.
AIBU to be irritated that he didn't communicate clearly, thoughtlessly changed our plans for the weekend to suit him whilst assuming it to be ok with me. Now projecting it to be my fault, says he 'won't surprise me again' and refuses to acknowledge that he has no need to work Sunday unpaid to sort out a problem that he could do on paid time Monday.