Firstly i should explain that my DH and I spend all of our spare time together and although it's cliched we really are best friends. We've had ups and downs like any normal couple, but he's a great father to our 20 mo DS and has always been loving and affectionate with me. He doesn't go out drinking and leave me holding the baby, we go out together and take our DS with us. What i'm saying is we're very close. Not everyone's cup of tea, but it's always worked for us. I have always trusted him implicitly (and he has me) on the odd occasion we have been apart in our 10 year relationship. But for maybe the past month we've had an argument every weekend about silly things.
On Thursday he went up north to see a customer and he travelled with a female colleague. They travelled up and came home the same day, so no overnight stop or anything. She recently moved to his department. He never used to like her when they worked together before, but he has spoken about her and said she's grown on him and they actually get on fine now. I wasn't suspicious at all. But on Thursday evening i waled into the bedroom and he was texting. As soon as he saw me her was like a rabbit in the headlights and it initially looked like he was going to hide his phone. I asked who he was texting and he replied 'Sara' so i made a comment about him all of a sudden being best mates with her. He told me he was texting her to say sorry for being moody earlier that evening when they has spoken (he wanted her help with some IT to get online from home), his text was to explain that he was pissed off about the fact he'd just got home and the car tyre was punctured. He showed me the text which said "Fucking car has a fucking puncture, sorry for sounding moody earlier".
Since then he's kept his phone very close to him. I managed to look at it the other day and all his messages had been wiped. Then yesterday evening i caught him on it again because he'd left the room and had been gone for some time. Again, the same rabbit in the headlights look. He slept with his phone under his pillow last night which i thought was pretty odd. I knew he had, but feigned ignorance this morning and casually asked him where his phone was because i wanted to play a game on it. He said he didn't know. When i left the room and came back in he said "oh here it is, it must have fallen down the side of the bed last night.
Please tell me i'm being paranoid.